使用IDEA的gradle整合spring+springmvc+mybatis 采用javaconfig配置

1.在上篇博客里讲述了spring+mybatis的整合，这边在上篇的基础上进行开发。

　　上篇博客链接http://www.cnblogs.com/huangyichun/p/6149946.html

2.项目总体架构

　　

　　（1）首先修改build.gradle文件，添加springmvc的依赖

　　　　

group 'com.huang'version '1.0-SNAPSHOT'apply plugin: 'java'apply plugin: 'war'apply plugin: 'eclipse'apply plugin: 'idea'sourceCompatibility = 1.5repositories {maven { url 'http://maven.springframework.org/release' }maven { url 'http://maven.springframework.org/milestone' }maven { url 'http://maven.springframework.org/snapshot' }maven { url 'http://download.java.net/maven/2' }mavenCentral()}dependencies {testCompile group: 'junit', name: 'junit', version: '4.12'testCompile"org.springframework:spring-test:${springVersion}"testCompile "com.github.stefanbirkner:system-rules:${systemRulesVersion}"compile "org.springframework:spring-core:$springVersion"compile "org.springframework:spring-context:$springVersion"compile "org.springframework:spring-jdbc:$springVersion"compile "org.mybatis:mybatis:$mybatisVersion"compile "org.mybatis:mybatis-spring:$mybatis_spring"compile "commons-dbcp:commons-dbcp:$commons_dbcp"compile "mysql:mysql-connector-java:$mysql_Java"compile "log4j:log4j:$log4jVersion"compile "com.h2database:h2:$h2Version"compile "javax.inject:javax.inject:1"compile "net.sf.ehcache:ehcache:$ehcacheVersion"compile "net.sf.ehcache:ehcache-jcache:$ehcacheJCacheVersion"compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.21'compile "org.springframework:spring-webmvc:$springVersion"compile "org.apache.commons:commons-lang3:$commonsLangVersion"compile "javax.servlet:jstl:$jstlVersion"providedCompile "javax.servlet:javax.servlet-api:$servletApiVersion"providedCompile "javax.servlet.jsp:jsp-api:$jspApiVersion"providedCompile "javax.el:javax.el-api:$jspElVersion"// https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12compile group: 'org.slf4j', name: 'slf4j-log4j12', version: '1.7.21'}

　　（2）添加配置文件，采用javaconfig

　　

　　直接上代码:

　　

package com.huang.config;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.FilterType;import org.springframework.context.annotation.Import;import org.springframework.web.servlet.config.annotation.EnableWebMvc;/** * ComponentScan的属性 
　　basePackageClasses：对basepackages()指定扫描注释组件包类型安全的替代。 excludeFilters：指定不适合组件扫描的类型。includeFilters：指定哪些类型有资格用于组件扫描。 lazyInit：指定是否应注册扫描的beans为lazy初始化。 nameGenerator：用于在Spring容器中的检测到的组件命名。resourcePatte：控制可用于组件检测的类文件。scopedProxy：指出代理是否应该对检测元件产生，在使用过程中会在代理风格时尚的范围是必要的。scopeResolver：用于解决检测到的组件的范围。 useDefaultFilters：指示是否自动检测类的注释 @Component@Repository, @Service, or @Controller 应启用。value：basePackages()别名 */@Configuration@ComponentScan(basePackages = {"com.huang.service"},excludeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION, value = EnableWebMvc.class)})@Import(DataConfig.class)public class RootConfig {}

package com.huang.config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.ViewResolver;import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;import org.springframework.web.servlet.view.IntealResourceViewResolver;@Configuration@EnableWebMvc@ComponentScan("com.huang.controller")public class WebConfig extends WebMvcConfigurerAdapter{//配置jsp视图@Beanpublic ViewResolver viewResolver(){IntealResourceViewResolver resolver = new IntealResourceViewResolver();resolver.setPrefix("/WEB-INF/views/");resolver.setSuffix(".jsp");resolver.setExposeContextBeansAsAttributes(true);retu resolver;}//配置静态资源处理@Overridepublic void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {configurer.enable();//将静态资源的请求转发到servlet容器中默认的servlet上}}

package com.huang.config;import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {protected Class<?>[] getRootConfigClasses() {retu new Class<?>[]{RootConfig.class};}protected Class<?>[] getServletConfigClasses() {retu new Class<?>[]{WebConfig.class};}protected String[] getServletMappings() {retu new String[]{"/"};}}

　　（3）编写service层代码

　　　　

 

package com.huang.service;import com.huang.domain.User;import java.util.List;public interface UserService {List<User> getUserList();User getUserById(String userId);void updateUserEmailById(String userId, String sex);void deleteUserById(String userId);void insertUser(User user);}

package com.huang.service.impl;import com.huang.domain.User;import com.huang.mapper.UserMapper;import com.huang.service.UserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;@Servicepublic class UserServiceImpl implements UserService {@AutowiredUserMapper userMapper;public List<User> getUserList() {List<User> list = userMapper.getUserList();retu list;}public User getUserById(String userId) {retu userMapper.getUserById(userId);}public void updateUserEmailById(String userId, String sex) {userMapper.updateUserEmailById(userId, sex);}public void deleteUserById(String userId) {userMapper.deleteUserById(userId);}public void insertUser(User user) {userMapper.insertUser(user);}}

 　　　　

　　（4）编写controller层代码　

package com.huang.controller;import com.huang.domain.User;import com.huang.service.UserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import java.util.List;@Controllerpublic class UserController {@Autowiredprivate UserService userService;@RequestMapping(value = "/getAllUser", method = RequestMethod.GET)public String getUserList(Model model){List<User> list = userService.getUserList();model.addAttribute("list",list);retu "showUsers";}}

　　（5）修改index.jsp代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %><html>  <head><title>$Title$</title>  </head>  <body><a href="/getAllUser">获取所有的user</a>  </body></html>

　　

　　（6）在WEB-INF下的views创建showUsers.jsp

　　

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head><title>显示所有的用户</title></head><body><form><table ><c:forEach var="user" items="${list}"><tr><td>${user.userId}</td><td>${user.name}</td><td>${user.depId}</td><td>${user.sex}</td></tr></c:forEach></table></form></body></html>

　

　　　(7)启动tomcat，打开index.jsp页面，点击链接显示：