在struts2.5.17下搭建struts2-junit-plugin-2.5.17时出现NullPointerException

anniezyx 2019-02-21 04:27:16

新手，想在struts2.5使用struts2-junit-plugin-2.5.17测试，不知道有没有拉了哪些关键部分，敬请各位前辈指点指点从哪里下手纠错

。谢谢

struts.xml程序片段

<action name="helloJUnit"

    class="a.b.c.d.e.web.actions.HelloJUnit" method="execute">

    <result name="success" type="tiles">.clf.home</result>

    <result name="error" type="tiles">.clf.home</result>

</action>

HelloJUnit.java

package a.b.c.d.e.web.actions;

import com.opensymphony.xwork2.ActionSupport;

 

@SuppressWarnings("serial")

public class HelloJUnit extends ActionSupport {

    private String username;

 

    public String execute() throws Exception {

        // TODO Auto-generated method stub

        return SUCCESS;

        }

 

    public String getusername() {

        return this.username;

    }

 

    public void setusername(String username) {

        this.username = username;

    }

}

web.xml程序片段

    <filter>

        <filter-name>struts2</filter-name>

        <filter-class>

            org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter

        </filter-class>

    </filter>

 

   <filter-mapping>

        <filter-name>struts2</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

StrutsTest.java

package a.b.c.d.e.junit;

 

//import java.io.UnsupportedEncodingException;

 

//import javax.servlet.ServletException;

 

import org.apache.struts2.StrutsTestCase;

import org.apache.struts2.dispatcher.mapper.ActionMapping;

import com.opensymphony.xwork2.Action;

import com.opensymphony.xwork2.ActionProxy;

 

import a.b.c.d.e.web.actions.HelloJUnit;

 

public class StrutsTest extends StrutsTestCase {

 

    //Test Action

    public void testGetActionMapping() throws Exception {

         

        System.out.println("Struts 2 JUnit Test: testGetActionMapping");    

         

        ActionMapping mapping = getActionMapping("/web/actions/HelloJUnit");

        //ActionMapping mapping = getActionMapping("/HelloJUnit");//works!

        //ActionMapping mapping = getActionMapping("/web/actions/HelloJUnit.action");//works!    

        assertNotNull(mapping);

        //System.out.println(mapping.getNamespace());

        assertEquals("/", mapping.getNamespace());

        //System.out.println(mapping.getName());

        assertEquals("HelloJUnit", mapping.getName());

         

        System.out.println("...testGetActionMapping done!");

    } 

 

    public void testGetActionProxy() throws Exception {

 

        //set parameters before calling getActionProxy

        request.setParameter("username", "ABC001");    

        System.out.println(request.getParameter("username"));

         

        ActionProxy proxy = getActionProxy("/HelloJUnit");

        System.out.println("...01");

/*        

        assertNotNull(proxy);

        System.out.println("...02");

        HelloJUnit action = (HelloJUnit) proxy.getAction();

        assertNotNull(action);

        System.out.println("...03");

        String result = proxy.execute();        

        assertEquals(Action.SUCCESS, result);

        System.out.println("...04");

        assertEquals("ABC001", action.getUsername());

        System.out.println("...testGetActionProxy done!");

        */

    } 

}

Run as JUnit Test 的结果是
testGetActionMapping 是通过了，输出：
Struts 2 JUnit Test: testGetActionMapping
...testGetActionMapping done!
但testGetActionProxy不通，输出：
ABC001

报错：
java.lang.NullPointerException
at org.apache.struts2.factory.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:63)
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:195)
at org.apache.struts2.factory.StrutsActionProxy.prepare(StrutsActionProxy.java:57)
at org.apache.struts2.factory.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:32)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:60)
at org.apache.struts2.StrutsTestCase.getActionProxy(StrutsTestCase.java:137)
at a.b.c.d.e.junit.StrutsTest.testGetActionProxy(StrutsTest.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:91)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

不好意思，不知道描述清楚了没有？谢谢

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