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SSH环境搭建出现NullPointerException

分类: 文章 • 2024-07-25 11:17:58

奇怪的是用Junit测试没有问题......


这是报的错误

java.lang.NullPointerException

    com.tax.test.web.action.TestAction.regist(TestAction.java:29)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)
    org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)






可以确定的是UserServcie没有注入......





测试动作类是:


import org.springframework.beans.factory.annotation.Autowired;



import com.opensymphony.xwork2.ActionSupport;

import com.opensymphony.xwork2.ModelDriven;

import com.tax.test.domain.User;

import com.tax.test.service.UserService;



public class TestAction extends ActionSupport implements ModelDriven<User> {


private User user = new User();
public void setUser(User user) {
this.user = user;
}
public User getUser() {
return user;
}


public User getModel() {
return user;
}

@Autowired
private UserService userService;

public String regist() {
System.out.println(userService);
userService.addUser(user);
return "success";
}


}





Junit测试代码





import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;



import com.tax.test.domain.User;

import com.tax.test.service.UserService;



@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration("classpath:spring/applicationContext.xml")

public class TestApp {


@Autowired
private UserService userService;

@Test
public void test01() {
User u = new User() ;
u.setUsername("hanman");
u.setPassword("1111");

System.out.println(userService);

userService.addUser(u);
}

}





Junit测试结果(控制台信息):


[email protected]

Hibernate: 

    insert 

    into

        t_user

        (username, password, id) 

    values

        (?, ?, ?)





重新导包一下,就好了..


就这样子...


好奇怪的


SSH环境搭建出现NullPointerException


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