ssm項目中使用spring單元測試模擬請求測試mvc接口

maven依賴

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.vhukze</groupId>
	<artifactId>ssm-curd</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<dependencies>
		<!-- springMVC -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>5.1.5.RELEASE</version>
		</dependency>
		<!-- 分頁插件 -->
		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper</artifactId>
			<version>5.1.11</version>
		</dependency>
		<!-- spring-jdbc -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>5.1.5.RELEASE</version>
		</dependency>
		<!-- spring的切面 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>5.1.5.RELEASE</version>
		</dependency>
		<!-- spring 單元測試 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>5.1.5.RELEASE</version>
			<!-- <scope>test</scope> -->
		</dependency>
		<!-- mybatis -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.5.1</version>
		</dependency>
		<!-- mybatis的spring適配包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>2.0.1</version>
		</dependency>
		<!-- c3p0連接池 -->
		<dependency>
			<groupId>com.mchange</groupId>
			<artifactId>c3p0</artifactId>
			<version>0.9.5.2</version>
		</dependency>

		<!-- mysql驅動包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>8.0.15</version>
		</dependency>
		<!-- jstl -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<!-- servlet-api -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>4.0.1</version>
			<scope>provided</scope>
		</dependency>
		<!-- junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>

		<!-- mybatis generator 逆向工程 -->
		<dependency>
			<groupId>org.mybatis.generator</groupId>
			<artifactId>mybatis-generator-core</artifactId>
			<version>1.4.0</version>
		</dependency>

	</dependencies>
</project>

測試類

ContextConfiguration註解中填寫spring配置文件和SpringMVC配置文件的位置

package com.vhukze.test;

import java.util.List;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mock.web.MockHttpServletRequest;
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.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import com.github.pagehelper.PageInfo;
import com.vhukze.bean.Employee;

/**
 * @author zsz
 * @date 2020年4月1日
 * @description
 */
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(locations = { "classpath:applicationContext.xml",
		"file:src/main/webapp/WEB-INF/dispatcherServlet-servlet.xml" })
public class MVCTest {

	// 傳入SpringMVC的IOC容器
	@Autowired
	WebApplicationContext context;
	// 虛擬mvc請求 獲取到處理結果
	MockMvc mockMvc;

	/**
	 * 初始化
	 */
	@Before
	public void initMockMvc() {
		mockMvc = MockMvcBuilders.webAppContextSetup(context).build();
	}

	@Test
	public void testPage() throws Exception {
		// 模擬請求並拿到返回值
		MvcResult result = mockMvc.perform(MockMvcRequestBuilders.get("/emps").param("pageNum", "1")).andReturn();
		System.out.println(111);
		//請求成功後，請求域中會有pageInfo，取出pageInfo驗證
		MockHttpServletRequest request = result.getRequest();
		PageInfo pageInfo = (PageInfo) request.getAttribute("pageInfo");
		
		System.out.println("當前頁："+pageInfo.getPageNum());
		System.out.println("總頁碼："+pageInfo.getPages());
		System.out.println("總記錄數："+pageInfo.getTotal());
		System.out.println("在頁面需要連續顯示的頁碼");
		int[] nums = pageInfo.getNavigatepageNums();
		for(int num : nums) {
			System.out.print(" "+num);
		}
		
		List<Employee> list = pageInfo.getList();
		for(Employee emp : list) {
			System.out.println("id:"+emp.getEmpId()+"=======name:"+emp.getEmpName());
		}
		
	}

}