IntelliJ IDEA 创建Spring+SpringMVC+mybatis+maven项目

我就是我 2022-05-28 05:56 268阅读 0赞

参考自:[https://www.cnblogs.com/hackyo/p/6646051.html][https_www.cnblogs.com_hackyo_p_6646051.html]

**第一步: 创建maven项目**

![1217818-20180329161340898-973835252.png][]

输入项目名和工程id

![1217818-20180329161704529-1520386927.png][]

选择maven

![1217818-20180329161927785-1169946090.png][]

默认就可以了

![1217818-20180329162049869-1995481826.png][]

刚开始时间比较长,可以看到,用了有7分多钟, 还是很快的

![1217818-20180329163833131-1205553321.png][]

maven包下载好后,项目结构如下

![1217818-20180329163742373-1838921145.png][]

**第二步： 创建java包**

可以看到, 缺少java包,在main上右键新建包

![1217818-20180329164253086-784771825.png][]

建完java后的目录

![1217818-20180329164330171-72695299.png][]

**第三步：创建层级结构**

到这里先不要修改java包的状态, 接着创建其他目录结构,这么做的主要目的是方便创建分级结构。

当改变java包的状态后，service.impl会变成一个包的名字，这时候需要Rename以下这个包，先变成service,然后创建PersonService.java, 在创建impl包, 就好了

如果觉得麻烦可以在创建目录的时候先不创建impl包

![1217818-20180329164813789-736839484.png][]

然后修改java包的状态,右键java包

![1217818-20180329164929347-1492291923.png][]

![1217818-20180329165114034-818731545.png][]

**第四步：创建需要的文件**

接下来创建一系列的文件, 然后在进行配置,先把骨架搭起来

![1217818-20180329170212419-2138558244.png][]

以上就是所有用到的文件，现在开始一个一个文件填充， 现在的目的是搭建起来能运次的项目，如果想知道配置原理请自行查阅资料

**第五步：填充文件**

被标称黄色的部分是需要注意的, 如果更改了需要做相应的改动, 如果项目目录跟这个一样,就不需要改动

PersonController.java

package com.ssm.demo.controller;
    
    import com.fasterxml.jackson.databind.ObjectMapper;
    import com.ssm.demo.entity.Person;
    import com.ssm.demo.service.PersonService;
    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("/person")
    public class PersonController {
    
        @Autowired
        private PersonService personService;
        @RequestMapping("/selectPerson")
        public void selectPerson(HttpServletRequest request, HttpServletResponse response) throws IOException {
    
            request.setCharacterEncoding("utf-8");
            response.setCharacterEncoding("utf-8");
    
            long personId = Long.parseLong(request.getParameter("id"));
            Person person =personService.findPersonById(personId);
    
            ObjectMapper mapper = new ObjectMapper();
    
            response.getWriter().write(mapper.writeValueAsString(person));
            response.getWriter().close();
        }
    }

PersonMapperDao.java

package com.ssm.demo.dao;
    
    import com.ssm.demo.entity.Person;
    import org.springframework.stereotype.Repository;
    
    @Repository
    public interface PersonMapperDao {
        Person findPersonById(long id);
    }

Person.java

package com.ssm.demo.entity;
    
    public class Person {
        private long id;
        private String name;
        private String email;
        private int status;
    
       //getter  setter
    
        @Override
        public String toString(){
            return this.getId()+"---"+this.getName()+"---"+
                    this.getEmail()+"---"+this.getStatus();
        }
    }

PersonService.java

package com.ssm.demo.service;
    
    import com.ssm.demo.entity.Person;
    
    public interface PersonService {
         Person findPersonById(long id);
    }

PersonServiceImpl.java

package com.ssm.demo.service.impl;
    
    import com.ssm.demo.dao.PersonMapperDao;
    import com.ssm.demo.entity.Person;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    @Service
    public class PersonServiceImpl implements PersonService {
        @Autowired
        private PersonMapperDao personMapperDao;
        public Person findPersonById(long id) {
            return personMapperDao.findPersonById(id);
        }
    }

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="com.ssm.demo"/>
    
        
        <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="com.ssm.demo.entity"/>
            
            <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
            
            <property name="basePackage" value="com.ssm.demo.dao"/>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <tx:annotation-driven transaction-manager="transactionManager"/>
    
    </beans>

PersonMapper.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="com.ssm.demo.dao.PersonMapperDao">
    
        <select id="findPersonById" resultType="Person" parameterType="long">
            SELECT * FROM person WHERE id = #{id}
        </select>
    
    </mapper>

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
    #数据库地址
    jdbc.url=jdbc:mysql://localhost:3306/数据库名?useUnicode=true&characterEncoding=utf8
    #用户名
    jdbc.username=数据库账号
    #密码
    jdbc.password=数据库密码
    #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

web.xml

<!DOCTYPE web-app PUBLIC
     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
     "http://java.sun.com/dtd/web-app_2_3.dtd" >
    <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>Archetype Created Web Application</display-name>
    
    
      
      <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:/config/spring/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.html</welcome-file>
      </welcome-file-list>
    
    </web-app>

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", "person/selectPerson", 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>

** **

**第六步: 配置tomcat**

先clean一下, 然后package一下

![1217818-20180329173050407-1187333825.png][]

打包成功后,控制台显示

![1217818-20180329173136557-412655615.png][]

会多一个包,和一个war文件

![1217818-20180329173157998-1851428990.png][]

配置tomcat

选择deployment, 点击右边加号

![1217818-20180330093949280-258866586.png][]

![1217818-20180330094203261-1894015104.png][]

输入请求的跟地址, 项目名

还有一种是点击右边加号,可以添加artifact的, 没弄明白怎么整的, 求链接.
     第七步: 数据库创建, 表的建立, 插入数据

navicat 图形化界面创建数据库,然后修改jdbc.properties文件的数据库名称为自己创建的数据库,然后创建表
    
    CREATE TABLE person (
      id int(11) NOT NULL AUTO_INCREMENT,
      email varchar(255) NOT NULL,
      name varchar(255) NOT NULL,
      status int(1) NOT NULL,
      PRIMARY KEY (id),
      UNIQUE KEY email (email) USING BTREE
    ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
    
    INSERT INTO person VALUES ('1', '123456qq.com', 'zzz', '0');
    SET FOREIGN_KEY_CHECKS=1;

![1217818-20180330101013025-763545511.png][]

**第八步: 启动tomcat, 弹出页面点击按钮, 会出现查询内容**

![1217818-20180330100030345-2035290167.png][]

![1217818-20180330100045193-803142356.png][]

以上是idea创建maven管理的ssm项目搭建, 本文作为学习经验,方便以后查看, 如有错误请指出,万望包含

[https_www.cnblogs.com_hackyo_p_6646051.html]: https://www.cnblogs.com/hackyo/p/6646051.html
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