IDEA通过maven整合SSM框架

叁歲伎倆 2022-04-04 07:00 276阅读 0赞

# IDEA整合SSM框架 #

记录下自己用idea来搭建SSM框架的步骤。为新手指指路,也为自己留个后路!

*  IDEA整合SSM框架
    
     *  创建maven项目
     *  编写pomxml文件
     *  创建项目架构
     *  项目架构说明
     *  配置各文件
        
         *  jdbcproperties
         *  log4jproperties
         *  spring-mvcxml
         *  spring-mybatisxml
         *  Userjava
         *  UserMapperxml
         *  UserDaojava
         *  UserService
         *  UserServiceImlpjava
         *  UserControllerjava
         *  indexjsp
         *  webxml
     *  测试效果
     *  结尾

## 创建maven项目 ##

> 由于ssm框架有很多jar包需要导入,因此我们选择用maven来管理项目。如果有不会创建maven项目的同学,请参考我的这篇文章 : [IDEA创建maven项目][IDEA_maven]

## 编写pom.xml文件 ##

> 网上整合出的pom文件代码有很多,新手可以不必自己一个个收集jar包。  
> 这里直接放出完整的代码,内涵注释,先不多做解释~直接替换都行!  
> 粘贴完以后,记得点import changes哦!  
> 然后赶紧做下一步,别傻等着jar下完~人生很短暂!且打代码且珍惜!

<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>xx.xxxx</groupId>
      <artifactId>ssm</artifactId>
      <packaging>war</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>ssm Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <properties>
        
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        
        <spring.version>4.3.5.RELEASE</spring.version>
        
        <mybatis.version>3.4.1</mybatis.version>
        
        <jstl.version>1.2</jstl.version>
      </properties>
    
      <dependencies>
        
        <dependency>
          <groupId>javax</groupId>
          <artifactId>javaee-api</artifactId>
          <version>7.0</version>
        </dependency>
    
        
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
        </dependency>
    
        
        <dependency>
          <groupId>ch.qos.logback</groupId>
          <artifactId>logback-classic</artifactId>
          <version>1.2.2</version>
        </dependency>
    
        
        <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-databind</artifactId>
          <version>2.8.7</version>
        </dependency>
    
        
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>5.1.41</version>
          <scope>runtime</scope>
        </dependency>
    
        
        <dependency>
          <groupId>com.mchange</groupId>
          <artifactId>c3p0</artifactId>
          <version>0.9.5.2</version>
        </dependency>
    
        
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>${mybatis.version}</version>
        </dependency>
    
        
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>1.3.1</version>
        </dependency>
    
        
        <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>
    
        
        <dependency>
          <groupId>jstl</groupId>
          <artifactId>jstl</artifactId>
          <version>${jstl.version}</version>
        </dependency>
    
      </dependencies>
    
      <build>
        <finalName>ssm</finalName>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
              
              <source>1.8</source>
              <target>1.8</target>
            </configuration>
          </plugin>
        </plugins>
      </build>
    </project>
    
     创建项目架构
    
    
     
      
      
      
       先按照我给的图创建好项目结构。
    
     
      
    
     
    
    
    
     项目架构说明
    
    
     
      
      
      
       差不多是一个标准ssm的项目架构,架构说明这块写的有误的地方请大家指正!
    
     
      
    
    
     
      
      
       目录名 说明 controller 控制器,写接口的地方 dao 数据交互层 pojo 模型层,放对象,也是mvc中的model层 service 业务逻辑层 impl 业务实现层 utils 存放工具类 mapper mybatis里调用的sql的xml sql 可以存放被多次调用的相同的sql语句 jdbc.properties 连接数据库的配置文件 log4j.properties 配置log的文件 spring-mvc.xml 配置springmvc的文件 spring-mybatis.xml 配置spring和mybatis的文件 
     
      
    
    
    
    
     配置各文件
    
    
     
      
      
      
       这部分大家酌情修改,主要修改包名,数据库连接信息。
    
     
      
    
    
    
     jdbc.properties
    
    
    
     jdbc.driver=com.mysql.jdbc.Driver
    #数据库地址
    jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
    #用户名
    jdbc.username=root
    #密码
    jdbc.password=123456
    #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

### log4j.properties ###

<?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>

### spring-mvc.xml ###

### 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">
    
        
        <context:component-scan base-package="cn.asghoul.service"/>
    
        
        <context:property-placeholder location="classpath:jdbc.properties"/>
    
        
        <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>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            
            <property name="dataSource" ref="dataSource"/>
            
            <property name="typeAliasesPackage" value="cn.asghoul.pojo"/>
            
            <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
            
            <property name="basePackage" value="cn.asghoul.dao"/>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <tx:annotation-driven transaction-manager="transactionManager"/>
    
    </beans>

### User.java ###

package cn.asghoul.pojo;
    
    public class User {
        int id;
        String name;
        int age;
    
        public int getId() {
            return id;
        }
    
        public void setId(int id) {
            this.id = id;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public int getAge() {
            return age;
        }
    
        public void setAge(int age) {
            this.age = age;
        }
    }

### UserMapper.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">
    
    <mapper namespace="cn.asghoul.dao.UserDao">
        <select id="selectUser" resultType="User" parameterType="hashmap">
            SELECT * FROM user
            <if test="id != null and id != '' ">
                <where>
                    AND id = #{id}
                </where>
            </if>
        </select>
    
    </mapper>

### UserDao.java ###

package cn.asghoul.dao;
    
    import cn.asghoul.pojo.User;
    import java.util.List;
    import java.util.Map;
    
    public interface UserDao {
        List<User> selectUser(Map<String,Object> map);
    }

### UserService ###

package cn.asghoul.service;
    
    import cn.asghoul.pojo.User;
    import java.util.List;
    import java.util.Map;
    
    public interface UserService {
        List<User> selectUser(Map<String,Object> map);
    }

### UserServiceImlp.java ###

package cn.asghoul.service.impl;
    
    import cn.asghoul.dao.UserDao;
    import cn.asghoul.pojo.User;
    import cn.asghoul.service.UserService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import java.util.List;
    import java.util.Map;
    
    @Service
    public class UserServiceImpl implements UserService{ 
        @Autowired
        UserDao userDao;
        @Override
        public List<User> selectUser(Map<String,Object> map) {
            return userDao.selectUser(map);
        }
    }

### UserController.java ###

> 这里我写了2个接口,一个是返回对象,自动转成json的案例。另一个是返回jsp,下面我会把数据挂上jsp。

package cn.asghoul.controller;
    
    import cn.asghoul.pojo.User;
    import cn.asghoul.service.UserService;
    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 org.springframework.web.servlet.ModelAndView;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    @Controller
    @RequestMapping("")
    public class UserController {
        @Autowired
        UserService userService;
    
        @ResponseBody
        @RequestMapping(value = "selectUserAsJson")
        public List<User> selectUserAsJson(String id){
            List<User> users = new ArrayList<>();
            Map<String,Object> map = new HashMap<>();
            map.put("id",id);
            users = userService.selectUser(map);
            return users;
        }
    
        @RequestMapping(value = "selectUserAsJsp")
        public ModelAndView selectUserAsJsp(String id){
            List<User> users = new ArrayList<>();
            Map<String,Object> map = new HashMap<>();
            map.put("id",id);
            users = userService.selectUser(map);
            ModelAndView model = new ModelAndView();
            model.addObject("users",users);
            model.setViewName("index");
            return model;
        }
    }

### index.jsp ###

> 这里注意,我写的是views文件夹下的那个index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.*"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <html>
    <body>
    <h2>Hello World!</h2>
    <table>
        <thead>
            <th>
                <td>id</td>
                <td>name</td>
                <td>age</td>
            </th>
        </thead>
        <tbody>
            <c:forEach items="${users}" var="user">
                <tr>
                    <td>${user.id}</td>
                    <td>${user.name}</td>
                    <td>${user.age}</td>
                </tr>
            </c:forEach>
        </tbody>
    </table>
    </body>
    </html>

### 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>ssm</display-name>
      <description>ssm_Alpha_0.0.1</description>
    
      
      <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>
    
      
      <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>
    
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
    
    </web-app>

## 测试效果 ##

> 首先我们用sql语句,创建一个表,并添加2条数据。

CREATE TABLE `user` ( `id` int(11) DEFAULT NULL, `name` varchar(255) DEFAULT NULL, `age` int(11) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
    
    INSERT INTO `user` VALUES ('1', '张三', '20'), ('2', '李四', '23');

> 然后我们运行起项目~随后用浏览器访问  
> [http://localhost:8080/ssm/selectUserAsJsp][http_localhost_8080_ssm_selectUserAsJsp]  
> [http://localhost:8080/ssm/selectUserAsJson][http_localhost_8080_ssm_selectUserAsJson]  
> 可以看到如下的效果  
> 注:这里需要先为项目配置Tomcat,配置过程很简单,大家可以百度一下~  
> ![jsp效果图][jsp]

![json效果图][json]

## 结尾 ##

> 如果你的效果与我一样,那么恭喜你已经成功啦~  
> 如果有问题的同学可以给我留言  
> 如果ok的同学可以再试试下面链接的效果哦~  
> [http://localhost:8080/ssm/selectUserAsJsp?id=1][http_localhost_8080_ssm_selectUserAsJsp_id_1]  
> [http://localhost:8080/ssm/selectUserAsJson?id=2][http_localhost_8080_ssm_selectUserAsJson_id_2]

**原文地址:**  
[IDEA创建maven项目 整合SSM框架][IDEA_maven_ _SSM]

[IDEA_maven]: http://blog.csdn.net/m0_37191431/article/details/78267803
[http_localhost_8080_ssm_selectUserAsJsp]: http://localhost:8080/ssm/selectUserAsJsp
[http_localhost_8080_ssm_selectUserAsJson]: http://localhost:8080/ssm/selectUserAsJson
[jsp]: /images/20220404/464d599a68c149afb739ed0d0af48a20.png
[json]: /images/20220404/0800e9151c6545d98b07ecc8770b99f5.png
[http_localhost_8080_ssm_selectUserAsJsp_id_1]: http://localhost:8080/ssm/selectUserAsJsp?id=1
[http_localhost_8080_ssm_selectUserAsJson_id_2]: http://localhost:8080/ssm/selectUserAsJson?id=2
[IDEA_maven_ _SSM]: https://blog.csdn.net/m0_37191431/article/details/78268695