Use axis2 to publish WebService and client calls

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How to publish WebService with axis2

Axis2 + tomcat6.0 implement WebService Server Release and client call (-)

 

There are many methods for developing WebService in aixs2. Here we only introduce a simple implementation method.

Step 1: first download the jar package required for development

 

Download: axis2-1.6.1-war.zip

Http://www.apache.org/dist//axis/axis2/java/core/1.6.1/

Decompress the downloaded files to the webapps folder under the tomcat installation directory. After Tomcat is started, the axis2 folder is generated under the webapps directory.

Access http: // localhost: 8080/axis2/. The following page is displayed, indicating that axis2 runs successfully.

Part II

Create a web project under eclipse with the project name webserve. Create the com. cm. service package and create the class helloworld. The Code is as follows:

PackageCom. cm. Service;

 

Public classHelloworld {

 

PublicString sayhello (string name ){Return"Hello," + name + ".";}

PublicString saysorry (string name ){Return"Sorry," + name + ".";}

PublicString getworld (){Return"Hello, world ";}

}

 

Modify the Web. xml file in the WEB-INF directory with the following content:

<? Xmlversion ="1.0"Encoding =UTF-8"?>

<Web-appversion ="2.5">

<! -- Axis2ConfigStart -->

<Servlet>

<Servlet-Name> axisservlet </servlet-Name>

<Servlet-class> org. Apache. axis2.transport. http. axisservlet </servlet-class>

<Load-on-startup> 1 </load-on-startup>

</Servlet>

<Servlet-mapping>

<Servlet-Name> axisservlet </servlet-Name>

<URL-pattern>/services/* </url-pattern>

</Servlet-mapping>

 

<! -- Axis2 end -->

<Welcome-file-List>

<Welcome-File> index. jsp </welcome-File>

</Welcome-file-List>

</Web-app>

 

Copy the modules, service, and conf files under the webapps/axis2/WEB-INF under the tomcat installation directory to the WEB-INF directory under helloworld. Copy the following jar package in Lib.

 

Then create the helloworld/META-INF path under services, and create services. xml under the META-INF, the content is as follows:

<Servicename ="Helloworld">

<Description>

Helloworld service example

</Description>

<Parametername ="Serviceclass">

Com. cm. Service. helloworld

</Parameter>

<Operationname ="Sayhello">

<Messagereceiverclass ="Org. Apache. axis2.rpc. Receivers. rpcmessagereceiver"/>

</Operation>

<Operationname ="Saysorry">

<Messagereceiverclass ="Org. Apache. axis2.rpc. Receivers. rpcmessagereceiver"/>

</Operation>

<Operationname ="Getworld">

<Messagereceiverclass ="Org. Apache. axis2.rpc. Receivers. rpcinonlymessagereceiver"/>

</Operation>

</Service>

 

Start Tomcat and access http: // 127.0.0.1: 8888/webserve/services/helloworld? The service information is displayed in the WSDL.

The WebService of axis2 has been released successfully.

 

Axis2 client call instance

Axis2 + tomcat6.0 implement WebService Server Release and client call (2)

The following describes how to call an instance using the axis2 client.

Create a client call class axisutil

The Code is as follows:

PackageCom. cm. client;

ImportJavax. xml. namespace. QNAME;

ImportOrg. Apache. axis2.addressing. endpointreference;

ImportOrg. Apache. axis2.client. options;

ImportOrg. Apache. axis2.rpc. Client. rpcserviceclient;

 

Public classAxisutil {

Public static voidMain (string [] ARGs ){

String xmlstr = "Xiaoxu. Wang ";

String url = "http: // 127.0.0.1: 8888/webserve/services/helloworld ";

String method = "saysorry ";

Axisutil.Sendservice(Xmlstr, URL, method );

}

Public staticString sendservice (string xmlstr, string URL, string method ){

String xml =Null;

Rpcserviceclient serviceclient =NewRpcserviceclient ();

Options = serviceclient. getoptions ();

Endpointreference targetepr =NewEndpointreference (URL );

Options. setto (targetepr );

// When creating a QNAME object, the first parameter of the constructor of the QNAME class indicates the namespace name of the WSDL file, that is<WSDL: Definitions>Element targetnamespace Attribute Value

QNAME opaddentry =NewQNAME ("http://service.cm.com", method );

// Parameter. If there are multiple parameters, add them to the end without specifying the parameter name.

Object [] opaddentryargs =NewObject [] {xmlstr };

// Return parameter type, which is a little different from axis1

// The invokeblocking method has three parameters. The first parameter is a QNAME object, indicating the name of the method to be called;

// The second parameter indicates the parameter value of the WebService method to be called. The parameter type is object [].

// The third parameter indicates the Class Object of the WebService method's return value type. The parameter type is class [].

// When the method does not have a parameter, the second parameter value of the invokeblocking method cannot be null, but new object [] {} must be used.

// If the called WebService method does not return a value, use the invokerobust method of the rpcserviceclient class,

// This method has only two parameters. Their meanings are the same as those of the first two parameters of the invokeblocking method.

Class[] Classes =NewClass [] {string.Class};

Xml = (string) serviceclient. invokeblocking (opaddentry, opaddentryargs, classes) [0];

System.Out. Println (XML );

ReturnXML;

}

}

 

Running result:

Sorry, Xiaoxu. Wang.

 

Conclusion: The above is a simple case of axis2 Service Release and call. If you are interested in other implementation methods, you can continue to study.