Table Of Contents<\/h3>\n\n- 1. What are Web Services?<\/a><\/dt>\n
- 2. Implementing JAX-WS Web Service Server<\/a><\/dt>\n
- \n
\n- 2.1 Implementing Service Endpoint Interface<\/a><\/dt>\n
- 2.2 Implementing Service Implementation Bean<\/a><\/dt>\n
- 2.3 Publishing Endpoint<\/a><\/dt>\n<\/dl>\n<\/dd>\n
- 3. WSDL explained<\/a><\/dt>\n
- 4. DOCUMENT style Web Services<\/a><\/dt>\n
- 5. Testing Web Service<\/a><\/dt>\n
- 6. Download the source code<\/a><\/dt>\n<\/dl>\n<\/div>\n
<\/a>1. What are Web Services?<\/h2>\nWeb service is a distributed webified<\/i> application typically delivered over HTTP<\/i>. The 3 key features of Web Services are:<\/p>\n\n- Open infrastructure<\/li>\n
- Language transparency<\/li>\n
- Modular design<\/li>\n<\/ol>\n
The major appeal of Web Services are language transparency, server and client can be written in different languages. And this language transparency is the key to web service interoperability<\/i>.<\/p>\n
Web service can be divided into 2 groups, SOAP<\/i> and REST<\/i>. <\/p>\n
SOAP stands for Simple Object Access Protocol and is a XML based web service. In this example, our entire focus shall be on SOAP based web service.<\/p>\n
REST stands for REpresentational State Transfer. REST doesn’t have any standard like SOAP has and works using standard HTTP methods like PUT<\/code>, GET<\/code>, DELETE<\/code> and POST<\/code>.<\/p>\nComing back to SOAP, it follows a simple architecture, client uses SOAP libraries to construct request and send it to server. Server uses SOAP libraries to decode request and construct corresponding response.<\/p>\n
![\"SOAP](\"http:\/\/examples.javacodegeeks.com\/wp-content\/uploads\/2016\/01\/SOAPArchitecture.jpg\")
<\/a>SOAP Architecture<\/figcaption><\/figure><\/p>\n<\/a>2. Implementing JAX-WS Web Service Server<\/h2>\n<\/a>2.1 Implementing Service Endpoint Interface<\/h3>\nThe first step in implementing Web Service server is writing Service Endpoint Interface. This interface defines the methods that shall be exposed by the web service. Let’s look at one example.<\/p>\n
CalculatorI.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebMethod;\r\nimport javax.jws.WebService;\r\nimport javax.jws.soap.SOAPBinding;\r\nimport javax.jws.soap.SOAPBinding.Style;\r\n\r\n@WebService\r\n@SOAPBinding(style = Style.RPC)\r\npublic interface CalculatorI {\r\n\t@WebMethod\r\n\tint add(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint subtract(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint multiply(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint divide(int a, int b);\r\n}\r\n<\/pre>\nIn the above program @SOAPBinding<\/code> annotation is used to specify the SOAP messaging style which can either be RPC<\/code> or DOCUMENT<\/code>. This style represents the encoding style of message sent to and fro while using the web service. With RPC<\/code> style a web service is capable of only using simple data types like integer or string. However, DOCUMENT<\/code> style is capable of richer data types for a class let\u2019s say Person<\/code>, which can have attributes like String name, Address address etc.<\/p>\nAlso, @WebMethod<\/code> annotation used above specifies that the method represents a web service operation.<\/p>\n<\/a>2.2 Implementing Service Implementation Bean<\/h3>\nNest step is to write the implementation of Service Endpoint Interface which is called Service Implementation Bean.<\/p>\n
CalculatorImpl.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebService;\r\n\r\n@WebService(endpointInterface = \"com.javacodegeeks.examples.jaxws.CalculatorI\")\r\npublic class CalculatorImpl implements CalculatorI {\r\n\r\n\t@Override\r\n\tpublic int add(int a, int b) {\r\n\t\treturn a + b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int subtract(int a, int b) {\r\n\t\treturn a - b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int multiply(int a, int b) {\r\n\t\treturn a * b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int divide(int a, int b) {\r\n\t\treturn a \/ b;\r\n\t}\r\n\r\n}\r\n<\/pre>\nIn the above program we can see that we have provided an optional element endpointInterface<\/code> to @WebService<\/code> annotation which says that this class is implementation of the mentioned Service Endpoint Interface. <\/p>\n<\/a>2.3 Publishing Endpoint<\/h3>\nNext step and the last step for completing and running the server for this example is running a small program that shall take the Service Implementation Bean object and shall publish this as a web service.<\/p>\n
CalcPublisher.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.xml.ws.Endpoint;\r\n\r\npublic class CalcPublisher {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tEndpoint ep = Endpoint.create(new CalculatorImpl());\r\n\t\tep.publish(\"http:\/\/127.0.0.1:10000\/calcServer\");\r\n\t}\r\n\r\n}\r\n<\/pre>\nOn running the above main program, web service shall be hosted at the URL passed as argument to the publish()<\/code> method in the above program.<\/p>\n<\/a>3. WSDL explained<\/h2>\nTo test the Web Service we can open a browser and view the WSDL which stands for Web Service Definition Language. For the web service published in section 2.3<\/a>, the URL to access the WSDL shall be http:\/\/127.0.0.1:10000\/calcServer?wsdl<\/code>. This is the URL at which the Web Service was published followed by ?wsdl<\/code>.<\/p>\nLet’s access this WSDL and save this in a file say calculator.wsdl<\/i>.<\/p>\n
calculator.wsdl<\/em><\/span><\/p>\n\r\n<!-- Published by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<!-- Generated by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<definitions\r\n\txmlns:wsu=\"http:\/\/docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-wssecurity-utility-1.0.xsd\"\r\n\txmlns:wsp=\"http:\/\/www.w3.org\/ns\/ws-policy\" xmlns:wsp1_2=\"http:\/\/schemas.xmlsoap.org\/ws\/2004\/09\/policy\"\r\n\txmlns:wsam=\"http:\/\/www.w3.org\/2007\/05\/addressing\/metadata\" xmlns:soap=\"http:\/\/schemas.xmlsoap.org\/wsdl\/soap\/\"\r\n\txmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" xmlns:xsd=\"http:\/\/www.w3.org\/2001\/XMLSchema\"\r\n\txmlns=\"http:\/\/schemas.xmlsoap.org\/wsdl\/\" targetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\tname=\"CalculatorImplService\">\r\n\t<types \/>\r\n\t<message name=\"add\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"addResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"divide\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"divideResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"subtract\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"subtractResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"multiply\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"multiplyResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<portType name=\"CalculatorI\">\r\n\t\t<operation name=\"add\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/addRequest\"\r\n\t\t\t\tmessage=\"tns:add\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/addResponse\"\r\n\t\t\t\tmessage=\"tns:addResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"divide\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/divideRequest\"\r\n\t\t\t\tmessage=\"tns:divide\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/divideResponse\"\r\n\t\t\t\tmessage=\"tns:divideResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"subtract\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/subtractRequest\"\r\n\t\t\t\tmessage=\"tns:subtract\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/subtractResponse\"\r\n\t\t\t\tmessage=\"tns:subtractResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"multiply\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/multiplyRequest\"\r\n\t\t\t\tmessage=\"tns:multiply\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/multiplyResponse\"\r\n\t\t\t\tmessage=\"tns:multiplyResponse\" \/>\r\n\t\t<\/operation>\r\n\t<\/portType>\r\n\t<binding name=\"CalculatorImplPortBinding\" type=\"tns:CalculatorI\">\r\n\t\t<soap:binding transport=\"http:\/\/schemas.xmlsoap.org\/soap\/http\"\r\n\t\t\tstyle=\"rpc\" \/>\r\n\t\t<operation name=\"add\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"divide\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"subtract\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"multiply\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t<\/binding>\r\n\t<service name=\"CalculatorImplService\">\r\n\t\t<port name=\"CalculatorImplPort\" binding=\"tns:CalculatorImplPortBinding\">\r\n\t\t\t<soap:address location=\"http:\/\/127.0.0.1:10000\/calcServer\" \/>\r\n\t\t<\/port>\r\n\t<\/service>\r\n<\/definitions>\r\n<\/pre>\nThis WSDL file is an XML format describing the web service. This is a strict contract and describes messages and operations at an abstract level. Let’s understand each tag of the WSDL file to get clear picture:
<\/div> <\/div><\/p>\n\n- types:<\/strong> <\/i>This optional tag represents data types in an XSD. This tag might hold or point to an XSD. If we find this tag as empty as in above WSDL, then it means that the Web Service uses simple data types. For complex data types,
DOCUMENT<\/code> style web services are implemented which is explained in next section.<\/li>\n- message:<\/strong> <\/i>This tag defines the messages that implement the web service. These messages are constructed from messages that are defined in types section, also it defines in out order of messages that represents request response pattern of web service operation.<\/li>\n
- portType:<\/strong> <\/i>This tag represents service as named operations, with each operation using one ore more messages. These operations are defined after method names defined against
@WebMethods<\/code> annotation. It is a kind of Java Interface defining the web service at an abstract level.<\/li>\n- binding:<\/strong> <\/i>This tag is kind of implementation of a Java interface. Here concrete details of web service are present.<\/li>\n
- service:<\/strong> <\/i>This tag contains information about one or more endpoints where web service functionality is available.<\/li>\n<\/ol>\n
<\/a>4. Document style Web Services<\/h2>\nNotice that the web service that we implemented in section 2<\/a> is using simple or primitive data types. But think of a scenario if we want to return Person<\/code> object based on id. In this case we use Document style web services.<\/p>\nFirst let’s implement POJO class Person<\/code>.<\/p>\nPerson.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\npublic class Person {\r\n\tprivate int id;\r\n\tprivate String name;\r\n\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n\tpublic Person(int id, String name) {\r\n\t\tsuper();\r\n\t\tthis.id = id;\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n\tpublic Person() {\r\n\t\tsuper();\r\n\t}\r\n}\r\n<\/pre>\nNext we shall implement a PersonUtil<\/code> class. This utility class shall help in managing Person<\/code> data. In production environment, we might be fetching data from the database.<\/p>\nPersonUtil.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport java.util.HashMap;\r\nimport java.util.Map;\r\n\r\npublic class PersonUtil {\r\n\tprivate static Map map;\r\n\t\r\n\tstatic {\r\n\t\tmap = new HashMap();\r\n\t\tmap.put(1, new Person(1, \"A\"));\r\n\t\tmap.put(2, new Person(2, \"B\"));\r\n\t\tmap.put(3, new Person(3, \"C\"));\r\n\t\tmap.put(4, new Person(4, \"D\"));\r\n\t\tmap.put(5, new Person(5, \"E\"));\r\n\t}\r\n\r\n\tprivate PersonUtil() {\r\n\t}\r\n\r\n\tpublic static Person getPerson(Integer id) {\r\n\t\treturn map.get(id);\r\n\t}\r\n}\r\n<\/pre>\nNext we shall implement Service Endpoint Inteface for DOCUMENT<\/code> style web service.<\/p>\nPersonServiceI.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebMethod;\r\nimport javax.jws.WebService;\r\nimport javax.jws.soap.SOAPBinding;\r\nimport javax.jws.soap.SOAPBinding.Style;\r\n\r\n@WebService\r\n@SOAPBinding(style = Style.DOCUMENT)\r\npublic interface PersonServiceI {\r\n\t@WebMethod\r\n\tPerson getPerson(Integer id);\r\n}\r\n<\/pre>\nNotice here that in the @SOAPBinding<\/code> annotation, style<\/code> attribute has just been changed to DOCUMENT<\/code>.<\/p>\nService Implementation Bean for the above interface shall be like:<\/p>\n
PersonServiceImpl.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebService;\r\n\r\n@WebService(endpointInterface = \"com.javacodegeeks.examples.jaxws.PersonServiceI\")\r\npublic class PersonServiceImpl implements PersonServiceI {\r\n\r\n\t@Override\r\n\tpublic Person getPerson(Integer id) {\r\n\t\treturn PersonUtil.getPerson(id);\r\n\t}\r\n\r\n}\r\n<\/pre>\nNext task is to publish the web service.<\/p>\n
PersonPublisher.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.xml.ws.Endpoint;\r\n\r\npublic class PersonPublisher {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tEndpoint ep = Endpoint.create(new PersonServiceImpl());\r\n\t\tep.publish(\"http:\/\/127.0.0.1:10000\/personServer\");\r\n\t}\r\n\r\n}\r\n<\/pre>\nOn executing this program we can check the WSDL at URL http:\/\/127.0.0.1:10000\/personServer?wsdl<\/code>. Let’s save this WSDL file as personService.wsdl.<\/p>\npersonService.wsdl<\/em><\/span><\/p>\n\r\n<!-- Generated by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<definitions\r\n\txmlns:wsu=\"http:\/\/docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-wssecurity-utility-1.0.xsd\"\r\n\txmlns:wsp=\"http:\/\/www.w3.org\/ns\/ws-policy\" xmlns:wsp1_2=\"http:\/\/schemas.xmlsoap.org\/ws\/2004\/09\/policy\"\r\n\txmlns:wsam=\"http:\/\/www.w3.org\/2007\/05\/addressing\/metadata\" xmlns:soap=\"http:\/\/schemas.xmlsoap.org\/wsdl\/soap\/\"\r\n\txmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" xmlns:xsd=\"http:\/\/www.w3.org\/2001\/XMLSchema\"\r\n\txmlns=\"http:\/\/schemas.xmlsoap.org\/wsdl\/\" targetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\tname=\"PersonServiceImplService\">\r\n\t<types>\r\n\t\t<xsd:schema>\r\n\t\t\t<xsd:import namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\t\t\t\tschemaLocation=\"http:\/\/127.0.0.1:10000\/personServer?xsd=1\" \/>\r\n\t\t<\/xsd:schema>\r\n\t<\/types>\r\n\t<message name=\"getPerson\">\r\n\t\t<part name=\"parameters\" element=\"tns:getPerson\" \/>\r\n\t<\/message>\r\n\t<message name=\"getPersonResponse\">\r\n\t\t<part name=\"parameters\" element=\"tns:getPersonResponse\" \/>\r\n\t<\/message>\r\n\t<portType name=\"PersonServiceI\">\r\n\t\t<operation name=\"getPerson\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/PersonServiceI\/getPersonRequest\"\r\n\t\t\t\tmessage=\"tns:getPerson\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/PersonServiceI\/getPersonResponse\"\r\n\t\t\t\tmessage=\"tns:getPersonResponse\" \/>\r\n\t\t<\/operation>\r\n\t<\/portType>\r\n\t<binding name=\"PersonServiceImplPortBinding\" type=\"tns:PersonServiceI\">\r\n\t\t<soap:binding transport=\"http:\/\/schemas.xmlsoap.org\/soap\/http\"\r\n\t\t\tstyle=\"document\" \/>\r\n\t\t<operation name=\"getPerson\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t<\/binding>\r\n\t<service name=\"PersonServiceImplService\">\r\n\t\t<port name=\"PersonServiceImplPort\" binding=\"tns:PersonServiceImplPortBinding\">\r\n\t\t\t<soap:address location=\"http:\/\/127.0.0.1:10000\/personServer\" \/>\r\n\t\t<\/port>\r\n\t<\/service>\r\n<\/definitions>\r\n<\/pre>\nNotice the change here in types<\/code> tag and messages<\/code> tag. The types<\/code> tag here says that it is importing schema from URL http:\/\/127.0.0.1:10000\/personServer?xsd=1<\/code>.<\/p>\npersonService.xsd<\/em><\/span><\/p>\n\r\n<xs:schema xmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\txmlns:xs=\"http:\/\/www.w3.org\/2001\/XMLSchema\" version=\"1.0\"\r\n\ttargetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\">\r\n\t<xs:element name=\"getPerson\" type=\"tns:getPerson\" \/>\r\n\t<xs:element name=\"getPersonResponse\" type=\"tns:getPersonResponse\" \/>\r\n\t<xs:complexType name=\"getPerson\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"arg0\" type=\"xs:int\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n\t<xs:complexType name=\"getPersonResponse\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"return\" type=\"tns:person\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n\t<xs:complexType name=\"person\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"id\" type=\"xs:int\" \/>\r\n\t\t\t<xs:element name=\"name\" type=\"xs:string\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n<\/xs:schema>\r\n<\/pre>\n<\/a>5. Testing Web Service<\/h2>\nIn this section we shall implement web service client for the service implemented in section 4<\/a> to test the same. On the same pattern web service implemented in section 2<\/a> can be tested.<\/p>\nWe shall use Java provided wsimport<\/code> utility that helps in generating this client support code using the WSDL document.<\/p>\nGo to command prompt\/bash, browse to the location where personService.wsdl<\/code> was saved, and enter following command:<\/p>\n$ wsimport -keep -p client personService.wsdl<\/pre>\nThis command shall generated following client support code:<\/p>\n
![\"wsimport](\"http:\/\/examples.javacodegeeks.com\/wp-content\/uploads\/2016\/01\/wsimpoertGeneratedCode.jpg\")
<\/a>wsimport Generated Code<\/figcaption><\/figure><\/p>\nNow we shall use this code in client project and call and check the web service.<\/p>\n
PersonServiceClient.java<\/em><\/span><\/p>\n\r\npackage com.javacodegeeks.examples.jaxws.client;\r\n\r\nimport client.PersonServiceI;\r\nimport client.PersonServiceImplService;\r\n\r\npublic class PersonServiceClient {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tPersonServiceImplService service = new PersonServiceImplService();\r\n\t\tPersonServiceI pService = service.getPersonServiceImplPort();\r\n\t\t\r\n\t\tSystem.out.println(pService.getPerson(1).getName());\r\n\t\tSystem.out.println(pService.getPerson(2).getName());\r\n\t\tSystem.out.println(pService.getPerson(3).getName());\r\n\t\tSystem.out.println(pService.getPerson(4).getName());\r\n\t\tSystem.out.println(pService.getPerson(5).getName());\r\n\t}\r\n\r\n}\r\n<\/pre>\nOutput of this client program shall be:<\/p>\n
\r\nA\r\nB\r\nC\r\nD\r\nE\r\n<\/pre>\n<\/a>6. Download the source code<\/h2>\nThis example has 2 eclipse projects (server and client) for demonstrating example of JAX-WS Web Service.<\/p>\n
Download<\/strong>
You can download the full source code of this example here: JAX-WS Web Service Example<\/a><\/a><\/strong><\/div>\n","protected":false},"excerpt":{"rendered":"In this example we shall learn implementing JAX-WS Web Service. JAX-WS are the API’s provided by Java for implementing Web Service. Here, we shall start by learning what web services are, their architecture, followed by implementation of server and client. We shall also learn the different variants of XML Web Service and the WSDL file …<\/p>\n","protected":false},"author":75,"featured_media":1240,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[461],"tags":[369,1264,1309,1311,1324,467,1320,1310,1281,254,1323],"class_list":["post-31636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jws","tag-document","tag-jax-ws","tag-jax-ws-client","tag-jws-client","tag-rpc","tag-soap","tag-soap-architecture","tag-soap-client","tag-soapbinding","tag-web-services-2","tag-wsdl"],"yoast_head":"\n
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- \n
- 2.1 Implementing Service Endpoint Interface<\/a><\/dt>\n
- 2.2 Implementing Service Implementation Bean<\/a><\/dt>\n
- 2.3 Publishing Endpoint<\/a><\/dt>\n<\/dl>\n<\/dd>\n
- 3. WSDL explained<\/a><\/dt>\n
- 4. DOCUMENT style Web Services<\/a><\/dt>\n
- 5. Testing Web Service<\/a><\/dt>\n
- 6. Download the source code<\/a><\/dt>\n<\/dl>\n<\/div>\n
<\/a>1. What are Web Services?<\/h2>\n
Web service is a distributed webified<\/i> application typically delivered over HTTP<\/i>. The 3 key features of Web Services are:<\/p>\n
- \n
- Open infrastructure<\/li>\n
- Language transparency<\/li>\n
- Modular design<\/li>\n<\/ol>\n
The major appeal of Web Services are language transparency, server and client can be written in different languages. And this language transparency is the key to web service interoperability<\/i>.<\/p>\n
Web service can be divided into 2 groups, SOAP<\/i> and REST<\/i>. <\/p>\n
SOAP stands for Simple Object Access Protocol and is a XML based web service. In this example, our entire focus shall be on SOAP based web service.<\/p>\n
REST stands for REpresentational State Transfer. REST doesn’t have any standard like SOAP has and works using standard HTTP methods like
PUT<\/code>,GET<\/code>,DELETE<\/code> andPOST<\/code>.<\/p>\nComing back to SOAP, it follows a simple architecture, client uses SOAP libraries to construct request and send it to server. Server uses SOAP libraries to decode request and construct corresponding response.<\/p>\n
<\/a>SOAP Architecture<\/figcaption><\/figure><\/p>\n <\/a>2. Implementing JAX-WS Web Service Server<\/h2>\n
<\/a>2.1 Implementing Service Endpoint Interface<\/h3>\n
The first step in implementing Web Service server is writing Service Endpoint Interface. This interface defines the methods that shall be exposed by the web service. Let’s look at one example.<\/p>\n
CalculatorI.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebMethod;\r\nimport javax.jws.WebService;\r\nimport javax.jws.soap.SOAPBinding;\r\nimport javax.jws.soap.SOAPBinding.Style;\r\n\r\n@WebService\r\n@SOAPBinding(style = Style.RPC)\r\npublic interface CalculatorI {\r\n\t@WebMethod\r\n\tint add(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint subtract(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint multiply(int a, int b);\r\n\r\n\t@WebMethod\r\n\tint divide(int a, int b);\r\n}\r\n<\/pre>\nIn the above program
@SOAPBinding<\/code> annotation is used to specify the SOAP messaging style which can either beRPC<\/code> orDOCUMENT<\/code>. This style represents the encoding style of message sent to and fro while using the web service. WithRPC<\/code> style a web service is capable of only using simple data types like integer or string. However,DOCUMENT<\/code> style is capable of richer data types for a class let\u2019s sayPerson<\/code>, which can have attributes like String name, Address address etc.<\/p>\nAlso,
@WebMethod<\/code> annotation used above specifies that the method represents a web service operation.<\/p>\n<\/a>2.2 Implementing Service Implementation Bean<\/h3>\n
Nest step is to write the implementation of Service Endpoint Interface which is called Service Implementation Bean.<\/p>\n
CalculatorImpl.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebService;\r\n\r\n@WebService(endpointInterface = \"com.javacodegeeks.examples.jaxws.CalculatorI\")\r\npublic class CalculatorImpl implements CalculatorI {\r\n\r\n\t@Override\r\n\tpublic int add(int a, int b) {\r\n\t\treturn a + b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int subtract(int a, int b) {\r\n\t\treturn a - b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int multiply(int a, int b) {\r\n\t\treturn a * b;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic int divide(int a, int b) {\r\n\t\treturn a \/ b;\r\n\t}\r\n\r\n}\r\n<\/pre>\nIn the above program we can see that we have provided an optional element
endpointInterface<\/code> to@WebService<\/code> annotation which says that this class is implementation of the mentioned Service Endpoint Interface. <\/p>\n<\/a>2.3 Publishing Endpoint<\/h3>\n
Next step and the last step for completing and running the server for this example is running a small program that shall take the Service Implementation Bean object and shall publish this as a web service.<\/p>\n
CalcPublisher.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.xml.ws.Endpoint;\r\n\r\npublic class CalcPublisher {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tEndpoint ep = Endpoint.create(new CalculatorImpl());\r\n\t\tep.publish(\"http:\/\/127.0.0.1:10000\/calcServer\");\r\n\t}\r\n\r\n}\r\n<\/pre>\nOn running the above main program, web service shall be hosted at the URL passed as argument to the
publish()<\/code> method in the above program.<\/p>\n<\/a>3. WSDL explained<\/h2>\n
To test the Web Service we can open a browser and view the WSDL which stands for Web Service Definition Language. For the web service published in section 2.3<\/a>, the URL to access the WSDL shall be
http:\/\/127.0.0.1:10000\/calcServer?wsdl<\/code>. This is the URL at which the Web Service was published followed by?wsdl<\/code>.<\/p>\nLet’s access this WSDL and save this in a file say calculator.wsdl<\/i>.<\/p>\n
calculator.wsdl<\/em><\/span><\/p>\n
\r\n<!-- Published by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<!-- Generated by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<definitions\r\n\txmlns:wsu=\"http:\/\/docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-wssecurity-utility-1.0.xsd\"\r\n\txmlns:wsp=\"http:\/\/www.w3.org\/ns\/ws-policy\" xmlns:wsp1_2=\"http:\/\/schemas.xmlsoap.org\/ws\/2004\/09\/policy\"\r\n\txmlns:wsam=\"http:\/\/www.w3.org\/2007\/05\/addressing\/metadata\" xmlns:soap=\"http:\/\/schemas.xmlsoap.org\/wsdl\/soap\/\"\r\n\txmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" xmlns:xsd=\"http:\/\/www.w3.org\/2001\/XMLSchema\"\r\n\txmlns=\"http:\/\/schemas.xmlsoap.org\/wsdl\/\" targetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\tname=\"CalculatorImplService\">\r\n\t<types \/>\r\n\t<message name=\"add\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"addResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"divide\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"divideResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"subtract\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"subtractResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"multiply\">\r\n\t\t<part name=\"arg0\" type=\"xsd:int\" \/>\r\n\t\t<part name=\"arg1\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<message name=\"multiplyResponse\">\r\n\t\t<part name=\"return\" type=\"xsd:int\" \/>\r\n\t<\/message>\r\n\t<portType name=\"CalculatorI\">\r\n\t\t<operation name=\"add\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/addRequest\"\r\n\t\t\t\tmessage=\"tns:add\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/addResponse\"\r\n\t\t\t\tmessage=\"tns:addResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"divide\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/divideRequest\"\r\n\t\t\t\tmessage=\"tns:divide\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/divideResponse\"\r\n\t\t\t\tmessage=\"tns:divideResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"subtract\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/subtractRequest\"\r\n\t\t\t\tmessage=\"tns:subtract\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/subtractResponse\"\r\n\t\t\t\tmessage=\"tns:subtractResponse\" \/>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"multiply\" parameterOrder=\"arg0 arg1\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/multiplyRequest\"\r\n\t\t\t\tmessage=\"tns:multiply\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/CalculatorI\/multiplyResponse\"\r\n\t\t\t\tmessage=\"tns:multiplyResponse\" \/>\r\n\t\t<\/operation>\r\n\t<\/portType>\r\n\t<binding name=\"CalculatorImplPortBinding\" type=\"tns:CalculatorI\">\r\n\t\t<soap:binding transport=\"http:\/\/schemas.xmlsoap.org\/soap\/http\"\r\n\t\t\tstyle=\"rpc\" \/>\r\n\t\t<operation name=\"add\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"divide\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"subtract\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t\t<operation name=\"multiply\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t<\/binding>\r\n\t<service name=\"CalculatorImplService\">\r\n\t\t<port name=\"CalculatorImplPort\" binding=\"tns:CalculatorImplPortBinding\">\r\n\t\t\t<soap:address location=\"http:\/\/127.0.0.1:10000\/calcServer\" \/>\r\n\t\t<\/port>\r\n\t<\/service>\r\n<\/definitions>\r\n<\/pre>\n
This WSDL file is an XML format describing the web service. This is a strict contract and describes messages and operations at an abstract level. Let’s understand each tag of the WSDL file to get clear picture:
<\/div> <\/div><\/p>\n- \n
- types:<\/strong> <\/i>This optional tag represents data types in an XSD. This tag might hold or point to an XSD. If we find this tag as empty as in above WSDL, then it means that the Web Service uses simple data types. For complex data types,
DOCUMENT<\/code> style web services are implemented which is explained in next section.<\/li>\n- message:<\/strong> <\/i>This tag defines the messages that implement the web service. These messages are constructed from messages that are defined in types section, also it defines in out order of messages that represents request response pattern of web service operation.<\/li>\n
- portType:<\/strong> <\/i>This tag represents service as named operations, with each operation using one ore more messages. These operations are defined after method names defined against
@WebMethods<\/code> annotation. It is a kind of Java Interface defining the web service at an abstract level.<\/li>\n- binding:<\/strong> <\/i>This tag is kind of implementation of a Java interface. Here concrete details of web service are present.<\/li>\n
- service:<\/strong> <\/i>This tag contains information about one or more endpoints where web service functionality is available.<\/li>\n<\/ol>\n
<\/a>4. Document style Web Services<\/h2>\n
Notice that the web service that we implemented in section 2<\/a> is using simple or primitive data types. But think of a scenario if we want to return
Person<\/code> object based on id. In this case we use Document style web services.<\/p>\nFirst let’s implement POJO class
Person<\/code>.<\/p>\nPerson.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\npublic class Person {\r\n\tprivate int id;\r\n\tprivate String name;\r\n\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n\tpublic Person(int id, String name) {\r\n\t\tsuper();\r\n\t\tthis.id = id;\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n\tpublic Person() {\r\n\t\tsuper();\r\n\t}\r\n}\r\n<\/pre>\nNext we shall implement a
PersonUtil<\/code> class. This utility class shall help in managingPerson<\/code> data. In production environment, we might be fetching data from the database.<\/p>\nPersonUtil.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport java.util.HashMap;\r\nimport java.util.Map;\r\n\r\npublic class PersonUtil {\r\n\tprivate static Map map;\r\n\t\r\n\tstatic {\r\n\t\tmap = new HashMap();\r\n\t\tmap.put(1, new Person(1, \"A\"));\r\n\t\tmap.put(2, new Person(2, \"B\"));\r\n\t\tmap.put(3, new Person(3, \"C\"));\r\n\t\tmap.put(4, new Person(4, \"D\"));\r\n\t\tmap.put(5, new Person(5, \"E\"));\r\n\t}\r\n\r\n\tprivate PersonUtil() {\r\n\t}\r\n\r\n\tpublic static Person getPerson(Integer id) {\r\n\t\treturn map.get(id);\r\n\t}\r\n}\r\n<\/pre>\nNext we shall implement Service Endpoint Inteface for
DOCUMENT<\/code> style web service.<\/p>\nPersonServiceI.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebMethod;\r\nimport javax.jws.WebService;\r\nimport javax.jws.soap.SOAPBinding;\r\nimport javax.jws.soap.SOAPBinding.Style;\r\n\r\n@WebService\r\n@SOAPBinding(style = Style.DOCUMENT)\r\npublic interface PersonServiceI {\r\n\t@WebMethod\r\n\tPerson getPerson(Integer id);\r\n}\r\n<\/pre>\nNotice here that in the
@SOAPBinding<\/code> annotation,style<\/code> attribute has just been changed toDOCUMENT<\/code>.<\/p>\nService Implementation Bean for the above interface shall be like:<\/p>\n
PersonServiceImpl.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.jws.WebService;\r\n\r\n@WebService(endpointInterface = \"com.javacodegeeks.examples.jaxws.PersonServiceI\")\r\npublic class PersonServiceImpl implements PersonServiceI {\r\n\r\n\t@Override\r\n\tpublic Person getPerson(Integer id) {\r\n\t\treturn PersonUtil.getPerson(id);\r\n\t}\r\n\r\n}\r\n<\/pre>\nNext task is to publish the web service.<\/p>\n
PersonPublisher.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws;\r\n\r\nimport javax.xml.ws.Endpoint;\r\n\r\npublic class PersonPublisher {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tEndpoint ep = Endpoint.create(new PersonServiceImpl());\r\n\t\tep.publish(\"http:\/\/127.0.0.1:10000\/personServer\");\r\n\t}\r\n\r\n}\r\n<\/pre>\nOn executing this program we can check the WSDL at URL
http:\/\/127.0.0.1:10000\/personServer?wsdl<\/code>. Let’s save this WSDL file as personService.wsdl.<\/p>\npersonService.wsdl<\/em><\/span><\/p>\n
\r\n<!-- Generated by JAX-WS RI (http:\/\/jax-ws.java.net). RI's version is JAX-WS \r\n\tRI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->\r\n<definitions\r\n\txmlns:wsu=\"http:\/\/docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-wssecurity-utility-1.0.xsd\"\r\n\txmlns:wsp=\"http:\/\/www.w3.org\/ns\/ws-policy\" xmlns:wsp1_2=\"http:\/\/schemas.xmlsoap.org\/ws\/2004\/09\/policy\"\r\n\txmlns:wsam=\"http:\/\/www.w3.org\/2007\/05\/addressing\/metadata\" xmlns:soap=\"http:\/\/schemas.xmlsoap.org\/wsdl\/soap\/\"\r\n\txmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\" xmlns:xsd=\"http:\/\/www.w3.org\/2001\/XMLSchema\"\r\n\txmlns=\"http:\/\/schemas.xmlsoap.org\/wsdl\/\" targetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\tname=\"PersonServiceImplService\">\r\n\t<types>\r\n\t\t<xsd:schema>\r\n\t\t\t<xsd:import namespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\t\t\t\tschemaLocation=\"http:\/\/127.0.0.1:10000\/personServer?xsd=1\" \/>\r\n\t\t<\/xsd:schema>\r\n\t<\/types>\r\n\t<message name=\"getPerson\">\r\n\t\t<part name=\"parameters\" element=\"tns:getPerson\" \/>\r\n\t<\/message>\r\n\t<message name=\"getPersonResponse\">\r\n\t\t<part name=\"parameters\" element=\"tns:getPersonResponse\" \/>\r\n\t<\/message>\r\n\t<portType name=\"PersonServiceI\">\r\n\t\t<operation name=\"getPerson\">\r\n\t\t\t<input\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/PersonServiceI\/getPersonRequest\"\r\n\t\t\t\tmessage=\"tns:getPerson\" \/>\r\n\t\t\t<output\r\n\t\t\t\twsam:Action=\"http:\/\/jaxws.examples.javacodegeeks.com\/PersonServiceI\/getPersonResponse\"\r\n\t\t\t\tmessage=\"tns:getPersonResponse\" \/>\r\n\t\t<\/operation>\r\n\t<\/portType>\r\n\t<binding name=\"PersonServiceImplPortBinding\" type=\"tns:PersonServiceI\">\r\n\t\t<soap:binding transport=\"http:\/\/schemas.xmlsoap.org\/soap\/http\"\r\n\t\t\tstyle=\"document\" \/>\r\n\t\t<operation name=\"getPerson\">\r\n\t\t\t<soap:operation soapAction=\"\" \/>\r\n\t\t\t<input>\r\n\t\t\t\t<soap:body use=\"literal\" \/>\r\n\t\t\t<\/input>\r\n\t\t\t<output>\r\n\t\t\t\t<soap:body use=\"literal\" \/>\r\n\t\t\t<\/output>\r\n\t\t<\/operation>\r\n\t<\/binding>\r\n\t<service name=\"PersonServiceImplService\">\r\n\t\t<port name=\"PersonServiceImplPort\" binding=\"tns:PersonServiceImplPortBinding\">\r\n\t\t\t<soap:address location=\"http:\/\/127.0.0.1:10000\/personServer\" \/>\r\n\t\t<\/port>\r\n\t<\/service>\r\n<\/definitions>\r\n<\/pre>\n
Notice the change here in
types<\/code> tag andmessages<\/code> tag. Thetypes<\/code> tag here says that it is importing schema from URLhttp:\/\/127.0.0.1:10000\/personServer?xsd=1<\/code>.<\/p>\npersonService.xsd<\/em><\/span><\/p>\n
\r\n<xs:schema xmlns:tns=\"http:\/\/jaxws.examples.javacodegeeks.com\/\"\r\n\txmlns:xs=\"http:\/\/www.w3.org\/2001\/XMLSchema\" version=\"1.0\"\r\n\ttargetNamespace=\"http:\/\/jaxws.examples.javacodegeeks.com\/\">\r\n\t<xs:element name=\"getPerson\" type=\"tns:getPerson\" \/>\r\n\t<xs:element name=\"getPersonResponse\" type=\"tns:getPersonResponse\" \/>\r\n\t<xs:complexType name=\"getPerson\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"arg0\" type=\"xs:int\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n\t<xs:complexType name=\"getPersonResponse\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"return\" type=\"tns:person\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n\t<xs:complexType name=\"person\">\r\n\t\t<xs:sequence>\r\n\t\t\t<xs:element name=\"id\" type=\"xs:int\" \/>\r\n\t\t\t<xs:element name=\"name\" type=\"xs:string\" minOccurs=\"0\" \/>\r\n\t\t<\/xs:sequence>\r\n\t<\/xs:complexType>\r\n<\/xs:schema>\r\n<\/pre>\n
<\/a>5. Testing Web Service<\/h2>\n
In this section we shall implement web service client for the service implemented in section 4<\/a> to test the same. On the same pattern web service implemented in section 2<\/a> can be tested.<\/p>\n
We shall use Java provided
wsimport<\/code> utility that helps in generating this client support code using the WSDL document.<\/p>\nGo to command prompt\/bash, browse to the location where
personService.wsdl<\/code> was saved, and enter following command:<\/p>\n$ wsimport -keep -p client personService.wsdl<\/pre>\n
This command shall generated following client support code:<\/p>\n
<\/a>wsimport Generated Code<\/figcaption><\/figure><\/p>\n Now we shall use this code in client project and call and check the web service.<\/p>\n
PersonServiceClient.java<\/em><\/span><\/p>\n
\r\npackage com.javacodegeeks.examples.jaxws.client;\r\n\r\nimport client.PersonServiceI;\r\nimport client.PersonServiceImplService;\r\n\r\npublic class PersonServiceClient {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tPersonServiceImplService service = new PersonServiceImplService();\r\n\t\tPersonServiceI pService = service.getPersonServiceImplPort();\r\n\t\t\r\n\t\tSystem.out.println(pService.getPerson(1).getName());\r\n\t\tSystem.out.println(pService.getPerson(2).getName());\r\n\t\tSystem.out.println(pService.getPerson(3).getName());\r\n\t\tSystem.out.println(pService.getPerson(4).getName());\r\n\t\tSystem.out.println(pService.getPerson(5).getName());\r\n\t}\r\n\r\n}\r\n<\/pre>\nOutput of this client program shall be:<\/p>\n
\r\nA\r\nB\r\nC\r\nD\r\nE\r\n<\/pre>\n
<\/a>6. Download the source code<\/h2>\n
This example has 2 eclipse projects (server and client) for demonstrating example of JAX-WS Web Service.<\/p>\n
Download<\/strong>
You can download the full source code of this example here: JAX-WS Web Service Example<\/a><\/a><\/strong><\/div>\n","protected":false},"excerpt":{"rendered":"In this example we shall learn implementing JAX-WS Web Service. JAX-WS are the API’s provided by Java for implementing Web Service. Here, we shall start by learning what web services are, their architecture, followed by implementation of server and client. We shall also learn the different variants of XML Web Service and the WSDL file …<\/p>\n","protected":false},"author":75,"featured_media":1240,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[461],"tags":[369,1264,1309,1311,1324,467,1320,1310,1281,254,1323],"class_list":["post-31636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jws","tag-document","tag-jax-ws","tag-jax-ws-client","tag-jws-client","tag-rpc","tag-soap","tag-soap-architecture","tag-soap-client","tag-soapbinding","tag-web-services-2","tag-wsdl"],"yoast_head":"\n
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These messages are constructed from messages that are defined in types section, also it defines in out order of messages that represents request response pattern of web service operation.<\/li>\n
- types:<\/strong> <\/i>This optional tag represents data types in an XSD. This tag might hold or point to an XSD. If we find this tag as empty as in above WSDL, then it means that the Web Service uses simple data types. For complex data types,
- 2.2 Implementing Service Implementation Bean<\/a><\/dt>\n