Spring 4集成Junit4

前言

springmvc4 整合 junit4，测试service层和controller层。

环境

• Spring-4.2.5.RELEASE
• Junit-4.11

spring环境整合

• 项目结构
  

• pom.xml文件

  
  	4.0.0
  	com.sicimike
  	spring-junit-demo
  	war
  	1.0.0-SNAPSHOT
  	spring-junit-demo
  	http://maven.apache.org
  
  	
  		4.2.5.RELEASE
  	
  
  	
  		
  			junit
  			junit
  			4.11
  			test
  		
  
  		
  			org.springframework
  			spring-core
  			${spring.version}
  		
  		
  			org.springframework
  			spring-beans
  			${spring.version}
  		
  		
  			org.springframework
  			spring-aop
  			${spring.version}
  		
  		
  			org.springframework
  			spring-context
  			${spring.version}
  		
  		
  			org.springframework
  			spring-web
  			${spring.version}
  		
  		
  			org.springframework
  			spring-webmvc
  			${spring.version}
  		
  		
  			org.springframework
  			spring-test
  			${spring.version}
  		
  		
  			org.springframework
  			spring-context-support
  			${spring.version}
  		
  
  		
  			org.hamcrest
  			hamcrest-core
  			1.3
  		
  
  		
  			javax.servlet
  			javax.servlet-api
  			3.0.1
  			provided
  		
  
  		
  			com.fasterxml.jackson.core
  			jackson-core
  			2.8.8
  		
  		
  			com.fasterxml.jackson.core
  			jackson-annotations
  			2.8.8
  		
  		
  			com.fasterxml.jackson.core
  			jackson-databind
  			2.8.8
  		
  
  	
  
  	
  		spring-junit-demo
  	
  
  

• applicationContext.xml文件

• web.xml文件

  
  
  
  	spring-junit
  	
  	
  		contextClass
  		org.springframework.web.context.support.XmlWebApplicationContext
  	
  	
  		contextConfigLocation
  		classpath:applicationContext.xml
  	
  	
  	
  	
  	
  		encodingFilter
  		org.springframework.web.filter.CharacterEncodingFilter
  		
  			encoding
  			UTF-8
  		
  		
  			forceEncoding
  			true
  		
  	
  	
  		encodingFilter
  		*
  	
  	
  
  	
  		SpringServlet
  		org.springframework.web.servlet.DispatcherServlet
  		
  			contextConfigLocation
  			classpath:applicationContext.xml
  		
  		2
  	
  
  	
  		SpringServlet
  		/*
  	
  
  	
  		org.springframework.web.context.ContextLoaderListener
  	
  	
  	
  		org.springframework.web.util.IntrospectorCleanupListener
  	
  	
  
  

测试service

./src/main/java目录下service代码如下：

package com.sicimike.service;

import org.springframework.stereotype.Service;

@Service
public class ExampleService {

	public void show() {
		System.out.println("ExampleService.show()");
	}
}

./src/test/java目录下对应的test类代码如下：
@Test标注的方法(testShow)必须满足：public修饰、返回类型void、没有参数

package com.sicimike.service;

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;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext.xml" })
public class ExampleServiceTests {

	@Autowired
	private ExampleService exampleService;

	@Test
	public void testShow() {
		exampleService.show();
	}

}

测试controller

./src/main/java目录下controller代码如下：

package com.sicimike.web;

import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.sicimike.service.ExampleService;

@Controller
public class ExampleController {
	
	@Autowired
	private ExampleService exampleService;
	
	@ResponseBody
	@RequestMapping("/show")
	public Map show(String id) {
		
		System.out.println("id is " + id);
		
		exampleService.show();
		
		Map map = new HashMap();
		map.put("code", "200");
		map.put("message", "success");
		
		return map;
	}

}

请求url：GET http://localhost:8080/show?id=123
返回数据：

{
    "code": "200",
    "message": "success"
}

./src/test/java目录下对应的test类代码如下：
@Test标注的方法(testShow)必须满足：public修饰、返回类型void、没有参数

package com.sicimike.web;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

@WebAppConfiguration
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext.xml" })
public class ExampleControllerTests {

	private MockMvc mockMvc;
	
	@Autowired
	WebApplicationContext webApplicationContext;

    @Before
    public void setUp(){
        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
    }
    
    @Test
    public void testShow() throws Exception {

        String url = "/show?id=123";

        MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get(url)
                .accept(MediaType.APPLICATION_JSON))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andReturn();
        
        System.out.println(mvcResult.getResponse().getContentAsString());

    }

}