使用idea2017搭建SSM框架(图文步骤)

搭建个SSM框架居然花费了我好长时间！特此记录！

需要准备的环境：

• idea 2017.1

• jdk1.8

• Maven 3.3.9

请提前将idea与Maven、jdk配置好，本次项目用的都是比较新的

注：配置完ide红线报错没关系！可以run！

步骤：

一、首先使用idea新建一个Maven webapp项目

点击Finish，第一次搭建可能会很慢，甚至可能需要VPN才能搭建成功

二、搭建目录结构

我这里列出的是搭建完了之后所有的目录和文件，诸位先把目录文件建起来，然后我在给出文件内容

这里的目录建好之后还需要设置一下，让idea识别目录作用，选择File-Project Structure

设置完成后ok

三、配置文件内容

pom.xml

<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/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>
 <groupId>com.chatRobot</groupId>
 <artifactId>ChatRobot</artifactId>
 <packaging>war</packaging>
 <version>1.0-SNAPSHOT</version>
 <name>ChatRobot Maven Webapp</name>
 <url>http://maven.apache.org</url>

<properties>
   <!-- 设置项目编码编码 -->
   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
   <!-- spring版本号 -->
   <spring.version>4.3.5.RELEASE</spring.version>
   <!-- mybatis版本号 -->
   <mybatis.version>3.4.1</mybatis.version>
 </properties>

<dependencies>

<!-- java ee -->
   <dependency>
     <groupId>javax</groupId>
     <artifactId>javaee-api</artifactId>
     <version>7.0</version>
   </dependency>

<!-- 单元测试 -->
   <dependency>
     <groupId>junit</groupId>
     <artifactId>junit</artifactId>
     <version>4.12</version>
   </dependency>

<!-- 实现slf4j接口并整合 -->
   <dependency>
     <groupId>ch.qos.logback</groupId>
     <artifactId>logback-classic</artifactId>
     <version>1.2.2</version>
   </dependency>

<!-- JSON -->
   <dependency>
     <groupId>com.fasterxml.jackson.core</groupId>
     <artifactId>jackson-databind</artifactId>
     <version>2.8.7</version>
   </dependency>

<!-- 数据库 -->
   <dependency>
     <groupId>mysql</groupId>
     <artifactId>mysql-connector-java</artifactId>
     <version>5.1.41</version>
     <scope>runtime</scope>
   </dependency>

<!-- 数据库连接池 -->
   <dependency>
     <groupId>com.mchange</groupId>
     <artifactId>c3p0</artifactId>
     <version>0.9.5.2</version>
   </dependency>

<!-- MyBatis -->
   <dependency>
     <groupId>org.mybatis</groupId>
     <artifactId>mybatis</artifactId>
     <version>${mybatis.version}</version>
   </dependency>

<!-- mybatis/spring整合包 -->
   <dependency>
     <groupId>org.mybatis</groupId>
     <artifactId>mybatis-spring</artifactId>
     <version>1.3.1</version>
   </dependency>

<!-- Spring -->
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-core</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-beans</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-context</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-jdbc</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-tx</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-web</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-webmvc</artifactId>
     <version>${spring.version}</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-test</artifactId>
     <version>${spring.version}</version>
   </dependency>

</dependencies>

<build>
   <finalName>ChatRobot</finalName>
   <plugins>
     <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-compiler-plugin</artifactId>
       <configuration>
         <!-- 设置JDK版本 -->
         <source>1.8</source>
         <target>1.8</target>
       </configuration>
     </plugin>
   </plugins>
 </build>

</project>

注意右下角更新pom

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true">
 <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
   <encoder>
     <pattern>％d{HH:mm:ss.SSS} [％thread] ％-5level ％logger{36} - ％msg％n</pattern>
   </encoder>
 </appender>
 <root level="debug">
   <appender-ref ref="STDOUT"/>
 </root>
</configuration>

这里可以控制输出格式和内容，有兴趣的可以自己设置

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
#数据库地址
jdbc.url=jdbc:mysql://xxxxxxxxx:3306/ChatRobot?useUnicode=true&characterEncoding=utf8
#用户名
jdbc.username=xxxx
#密码
jdbc.password=xxxxx
#最大连接数
c3p0.maxPoolSize=30
#最小连接数
c3p0.minPoolSize=10
#关闭连接后不自动commit
c3p0.autoCommitOnClose=false
#获取连接超时时间
c3p0.checkoutTimeout=10000
#当获取连接失败重试次数
c3p0.acquireRetryAttempts=2

spring-mybatis.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx.xsd">

<!-- 扫描service包下所有使用注解的类型 -->
 <context:component-scan base-package="com.chatRobot.service"/>

<!-- 配置数据库相关参数properties的属性：${url} -->
 <context:property-placeholder location="classpath:jdbc.properties"/>

<!-- 数据库连接池 -->
 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
   <property name="driverClass" value="${jdbc.driver}"/>
   <property name="jdbcUrl" value="${jdbc.url}"/>
   <property name="user" value="${jdbc.username}"/>
   <property name="password" value="${jdbc.password}"/>
   <property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>
   <property name="minPoolSize" value="${c3p0.minPoolSize}"/>
   <property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
   <property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
   <property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
 </bean>

<!-- 配置SqlSessionFactory对象 -->
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
   <!-- 注入数据库连接池 -->
   <property name="dataSource" ref="dataSource"/>
   <!-- 扫描model包 使用别名 -->
   <property name="typeAliasesPackage" value="com.chatRobot.model"/>
   <!-- 扫描sql配置文件:mapper需要的xml文件 -->
   <property name="mapperLocations" value="classpath:mapper/*.xml"/>
 </bean>

<!-- 配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
   <!-- 注入sqlSessionFactory -->
   <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
   <!-- 给出需要扫描Dao接口包 -->
   <property name="basePackage" value="com.chatRobot.dao"/>
 </bean>

<!-- 配置事务管理器 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
   <!-- 注入数据库连接池 -->
   <property name="dataSource" ref="dataSource"/>
 </bean>

<!-- 配置基于注解的声明式事务 -->
 <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd
   http://www.springframework.org/schema/mvc
   http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

<!-- 扫描web相关的bean -->
 <context:component-scan base-package="com.chatRobot.controller"/>

<!-- 开启SpringMVC注解模式 -->
 <mvc:annotation-driven/>

<!-- 静态资源默认servlet配置 -->
 <mvc:default-servlet-handler/>

<!-- 配置jsp 显示ViewResolver -->
 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
   <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
   <property name="prefix" value="/WEB-INF/views/"/>
   <property name="suffix" value=".jsp"/>
 </bean>

</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    version="3.1">

<display-name>ChatRobot</display-name>
 <description>ChatRobot_Alpha_0.0.1</description>

<!-- 编码过滤器 -->
 <filter>
   <filter-name>encodingFilter</filter-name>
   <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
   <init-param>
     <param-name>encoding</param-name>
     <param-value>UTF-8</param-value>
   </init-param>
 </filter>
 <filter-mapping>
   <filter-name>encodingFilter</filter-name>
   <url-pattern>/*</url-pattern>
 </filter-mapping>

<!-- 配置DispatcherServlet -->
 <servlet>
   <servlet-name>SpringMVC</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
   <!-- 配置springMVC需要加载的配置文件-->
   <init-param>
     <param-name>contextConfigLocation</param-name>
     <param-value>classpath:spring-*.xml</param-value>
   </init-param>
   <load-on-startup>1</load-on-startup>
   <async-supported>true</async-supported>
 </servlet>
 <servlet-mapping>
   <servlet-name>SpringMVC</servlet-name>
   <!-- 匹配所有请求，此处也可以配置成 *.do 形式 -->
   <url-pattern>/</url-pattern>
 </servlet-mapping>

<welcome-file-list>
   <welcome-file>index.html</welcome-file>
 </welcome-file-list>

</web-app>

到这里基本上环境就搭建完成了，下面开始测试

四、测试

先导入一份数据库测试文件

CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户ID',
`email` varchar(255) NOT NULL COMMENT '用户邮箱',
`password` varchar(255) NOT NULL COMMENT '用户密码',
`username` varchar(255) NOT NULL COMMENT '用户昵称',
`role` varchar(255) NOT NULL COMMENT '用户身份',
`status` int(1) NOT NULL COMMENT '用户状态',
`regTime` datetime NOT NULL COMMENT '注册时间',
`regIp` varchar(255) NOT NULL COMMENT '注册IP',
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
INSERT INTO `user` VALUES ('1', 'xxx', 'xxxxx', 'xxxxx', 'root', '0', '2017-03-28 09:40:31', '127.0.0.1');
SET FOREIGN_KEY_CHECKS=1;

接下来配置类

UserController

package com.chatRobot.controller;

import javax.servlet.http.HttpServletRequest;

import com.chatRobot.model.User;
import com.chatRobot.service.IUserService;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Controller
@RequestMapping("/user")
public class UserController {

@Resource
 private IUserService userService;

@RequestMapping("/showUser.do")
 public void selectUser(HttpServletRequest request, HttpServletResponse response) throws IOException {
   request.setCharacterEncoding("UTF-8");
   response.setCharacterEncoding("UTF-8");
   long userId = Long.parseLong(request.getParameter("id"));
   User user = this.userService.selectUser(userId);
   ObjectMapper mapper = new ObjectMapper();
   response.getWriter().write(mapper.writeValueAsString(user));
   response.getWriter().close();
 }

}

IUserDao

package com.chatRobot.dao;

import com.chatRobot.model.User;

public interface IUserDao {

User selectUser(long id);

}

User

package com.chatRobot.model;

import java.util.Date;

public class User {

private long id;
 private String email;
 private String password;
 private String username;
 private String role;
 private int status;
 private Date regTime;
 private String regIp;

public long getId() {
   return id;
 }

public void setId(int id) {
   this.id = id;
 }

public String getEmail() {
   return email;
 }

public void setEmail(String email) {
   this.email = email;
 }

public String getPassword() {
   return password;
 }

public void setPassword(String password) {
   this.password = password;
 }

public String getUsername() {
   return username;
 }

public void setUsername(String username) {
   this.username = username;
 }

public String getRole() {
   return role;
 }

public void setRole(String role) {
   this.role = role;
 }

public int getStatus() {
   return status;
 }

public void setStatus(int status) {
   this.status = status;
 }

public Date getRegTime() {
   return regTime;
 }

public void setRegTime(Date regTime) {
   this.regTime = regTime;
 }

public String getRegIp() {
   return regIp;
 }

public void setRegIp(String regIp) {
   this.regIp = regIp;
 }

}

IUserService

package com.chatRobot.service;

import com.chatRobot.model.User;

public interface IUserService {

public User selectUser(long userId);

}

UserServiceImpl

package com.chatRobot.service.impl;

import com.chatRobot.dao.IUserDao;
import com.chatRobot.model.User;
import com.chatRobot.service.IUserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service("userService")
public class UserServiceImpl implements IUserService {

@Resource
 private IUserDao userDao;

public User selectUser(long userId) {
   return this.userDao.selectUser(userId);
 }

}

UserDao.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<!-- 设置为IUserDao接口方法提供sql语句配置 -->
<mapper namespace="com.chatRobot.dao.IUserDao">

<select id="selectUser" resultType="User" parameterType="long">
   SELECT * FROM user WHERE id = #{id}
 </select>

</mapper>

然后新建个测试类，来测试mybatis

IUserDaoTest

package com.chatRobot.dao;

import com.chatRobot.model.User;
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;

// 加载spring配置文件
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:spring-mybatis.xml"})
public class IUserDaoTest {

@Autowired
 private IUserDao dao;

@Test
 public void testSelectUser() throws Exception {
   long id = 1;
   User user = dao.selectUser(id);
   System.out.println(user.getUsername());
 }

}

运行后结果应该是会在控制台输出id为1的用户名，没成功的话就找BUG去吧...

继续新建个页面来测试springmvc和mybatis

index.html

<!DOCTYPE html>
<html>
<head>
 <meta charset="UTF-8">
 <title>test</title>
</head>
<script>
 function selectUser() {
   var xmlhttp = new XMLHttpRequest();
   xmlhttp.onreadystatechange = function () {
     if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
       document.getElementById("test").innerHTML = xmlhttp.responseText;
     }
   }
   xmlhttp.open("POST", "user/showUser.do", true);
   xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
   xmlhttp.send("id=1");
 }
</script>
<body>
<p id="test">Hello World!</p>
<button type="button" onclick="selectUser()">onclick test</button>
</body>
</html>

新建完成后配置项目运行环境，点击Run-Edit Configurations...

点击加号新建运行环境，选择Tomcat Server-Local

选中新建好的服务器，右边选择Deployment,点击加号-Atifact...

选择第二项

然后在右边Application context配置你的项目名

最后运行项目，在打开的页面中点击按钮测试，成功的话会在页面上显示id为1的用户信息

来源：https://www.cnblogs.com/hackyo/p/6646051.html