使用IDEA搭建SSM框架

项目环境

编译器：idea2017.2

JDK:1.8.131

MAVEN:3.3.9

MAVEN地址：http://maven.aliyun.com/nexus/

详细请点击这里看我有道云笔记，有图更详细

搭建过程

创建工程

1.使用idea新建一个Maven webapp项目

2.接着下一步，这里需要注在Properties中添加一个参数 archetypeCatalog=internal，不加这个参数，在maven生成骨架的时候将会非常慢，有时候直接卡住。来自网上的解释：

archetypeCatalog表示插件使用的archetype元数据，不加这个参数时默认为remote，local，即中央仓库archetype元数据，由于中央

仓库的archetype太多了所以导致很慢，指定internal来表示仅使用内部元数据。

完成生成如下：

项目并没有完整，需要完善配置文件和目录

目录搭建

1.修改MAVEN的pom.xml文件

加入plugin版本，并且指定JAVA版本，避免每次需要重复设置

补充目录后如下结构

文件配置

编辑pom.xml文件，将SpringMVC需要的相关内容引入 

编辑的内容包括建立标签，统一后面引入时涉及到的版本号 

编辑标签，将需要的SpringMVC内容通过groupid artifactid以及version这些“坐标”信息告诉maven，由maven负责导入 

pom.xml文件内容

<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.ishopmall</groupId>

<artifactId>ishopmall</artifactId>

<packaging>war</packaging>

<version>1.0-SNAPSHOT</version>

<name>ishopmall 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>

<!-- 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>ishopmall</finalName>

<plugins>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.1</version>

<configuration>

<source>1.8</source>

<target>1.8</target>

</configuration>

</plugin>

</plugins>

</build>

</project>

请结合实际项目修改相关的JAR包和项目名称

2.jdbc.properties：用于配置数据库连接信息

jdbcDriver=com.mysql.jdbc.Driver

jdbcUrl=jdbc:mysql://localhost:3306/db_ishopmall?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull

username=root

password=root

#定义初始连接数

initialSize=0

#定义最大连接数

maxActive=20

#定义最大空闲

maxIdle=20

#定义最小空闲

minIdle=1

#定义最长等待时间

maxWait=60000

3.spring-mybatis.xml配置：

<?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">

<!-- 自动扫描service包下所有使用的注解 -->

<context:component-scan base-package="com.ishopmall.service"/>

<!-- 第一种方式：加载一个properties文件 -->

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="location" value="classpath:jdbc.properties"/>

</bean>

<!-- 第二种方式：加载多个properties文件

<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">

<property name="locations">

<list>

<value>classpath:jdbc.properties</value>

<value>classpath:common.properties</value>

</list>

</property>

<property name="fileEncoding" value="UTF-8"/>

</bean>

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">

<property name="properties" ref="configProperties"/>

</bean>

-->

<!-- 配置数据源 -->

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"

destroy-method="close">

<property name="driverClass" value="${jdbcDriver}"></property>

<property name="jdbcUrl" value="${jdbcUrl}"></property>

<property name="user" value="${username}"></property>

<property name="password" value="${password}"></property>

<property name="maxPoolSize" value="${c3p0.maxPoolSize}"></property>

<property name="minPoolSize" value="${c3p0.minPoolSize}"></property>

<property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>

<property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>

<property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>

</bean>

<!-- 配置SqlSessionFactory，mybatis和spring完美整合，不需要mybatis的配置映射文件 -->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!-- 注入数据库连接池 -->

<property name="dataSource" ref="dataSource"></property>

<!-- 扫描model包 使用别名 -->

<property name="typeAliasesPackage" value="com.ishopmall.model"></property>

<!-- 扫描sql配置文件:mapper需要的xml文件 -->

<property name="mapperLocations" value="classpath:mapper/*.xml"></property>

</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"></property>

<property name="basePackage" value="com.ishopmall.dao"></property>

</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<property name="dataSource" ref="dataSource"/>

</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

<tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

4.spring-mvc.xml配置：

<?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.xsd">

<!-- 自动扫描 @Controller-->

<context:component-scan base-package="com.ishopmall.controller"></context:component-scan>

<!-- 启用springMVC注解功能,完成请求和注解POJO的映射 -->

<mvc:annotation-driven></mvc:annotation-driven>

<!-- 静态资源默认servlet配置 -->

<mvc:default-servlet-handler/>

<!--避免IE执行AJAX时，返回JSON出现下载文件 -->

<bean id="mappingJacksonHttpMessageConverter"

class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>text/html;charset=UTF-8</value>

</list>

</property>

</bean>

<!-- 定义跳转文件后缀，视图模式配置 -->

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/" />

<property name="suffix" value=".jsp"/>

</bean>

<!-- 文件上传配置 -->

<!--<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">-->

<!--&lt;!&ndash; 默认编码 &ndash;&gt;-->

<!--<property name="defaultEncoding" value="UTF-8"></property>-->

<!--&lt;!&ndash; 上传文件大小限制为31M，31*1024*1024 &ndash;&gt;-->

<!--<property name="maxUploadSize" value="32505856"/>-->

<!--&lt;!&ndash; 内存中的最大值 &ndash;&gt;-->

<!--<property name="maxInMemorySize" value="4096"/>-->

<!--</bean>-->

</beans>

添加完成之后建议去添加一下配置让IDEA自动识别

打开项目配置并且选择model：

5.配置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>ishopmall</display-name>

<!-- 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>

<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>

<url-pattern>/</url-pattern>

</servlet-mapping>

<!--首页 -->

<welcome-file-list>

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

</welcome-file-list>

</web-app>

6.日志配置（log4j）：log4j.properties

log4j.rootLogger=DEBUG, Console

#Console

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.layout=org.apache.log4j.PatternLayout

log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n

log4j.logger.java.sql.ResultSet=INFO

log4j.logger.org.apache=INFO

log4j.logger.java.sql.Connection=DEBUG

log4j.logger.java.sql.Statement=DEBUG

log4j.logger.java.sql.PreparedStatement=DEBUG

7.控制台输出格式配置：该配置可以使控制台输出的格式比较工整

<?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>

提示：有可能找不到关于servlet-api的问题

通过项目管理找到Libeary添加对应版本的tomcat包，这样HttpServletRequest那些类在导入时候就不会找不到了

最终结构：

数据库测试文件：

CREATETABLE `user` ( `id`int(11)NOTNULL AUTO_INCREMENT COMMENT'用户ID', `email`varchar(255)NOTNULL COMMENT'用户邮箱', `password`varchar(255)NOTNULL COMMENT'用户密码', `username`varchar(255)NOTNULL COMMENT'用户昵称', `role`varchar(255)NOTNULL COMMENT'用户身份', `status`int(1)NOTNULL COMMENT'用户状态', `regTime`datetimeNOTNULL COMMENT'注册时间', `regIp`varchar(255)NOTNULL COMMENT'注册IP',PRIMARYKEY (`id`),UNIQUEKEY `email` (`email`) USING BTREE) ENGINE=InnoDB AUTO_INCREMENT=2DEFAULT CHARSET=utf8;INSERTINTO `user`VALUES ('1','xxx','xxxxx','xxxxx','root','0','2017-03-28 09:40:31','127.0.0.1');SET FOREIGN_KEY_CHECKS=1;

配置类

controller：

package com.ishopmall.controller;

import com.fasterxml.jackson.databind.ObjectMapper;

import com.ishopmall.model.User;

import com.ishopmall.service.UserService;

import org.junit.Test;

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

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

@Controller

@RequestMapping("/user")

public class UserController {

@Autowired

private UserService 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);

System.out.println(user);

ObjectMapper mapper = new ObjectMapper();

response.getWriter().write(mapper.writeValueAsString(user));

response.getWriter().close();

}

}

UserDao：

package com.ishopmall.dao;

import com.ishopmall.model.User;

import org.springframework.stereotype.Repository;

@Repository

public interface UserDao {

User selectUser(long id);

}

UserDaoTest：

package com.ishopmall.dao;

import com.ishopmall.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 UserDaoTest{

@Autowired

private UserDao dao;

@Test

public void testSelectUser() throws Exception {

long id = 1;

User user = dao.selectUser(id);

System.out.println(user.getUsername());

}

}

User:

package com.ishopmall.model;

import org.springframework.stereotype.Component;

import java.util.Date;

@Component

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(long 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;

}

@Override

public String toString() {

return "User{" +

"id=" + id +

", email='" + email + '\'' +

", password='" + password + '\'' +

", username='" + username + '\'' +

", role='" + role + '\'' +

", status=" + status +

", regTime=" + regTime +

", regIp='" + regIp + '\'' +

'}';

}

}

UserServiceImpl

package com.ishopmall.service.impl;

import com.ishopmall.dao.UserDao;

import com.ishopmall.model.User;

import com.ishopmall.service.UserService;

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

import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service("userService")

public class UserServiceImpl implements UserService{

@Autowired

private UserDao userDao;

@Override

public User selectUser(long userId) {

return userDao.selectUser(userId);

}

}

UserService:

package com.ishopmall.service;

import com.ishopmall.model.User;

public interface UserService {

User selectUser(long userId);

}

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>

Tomcat配置：

建议开启热部署