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idea assembly如何创建项目 用idea创建ssm项目

编程语言2024-04-28 18:27:44

使用idea创建SSM项目

项目下载地址：解压后的 demo03

1、环境准备

开发环境：idea 2020.1.1，jdk 1.8，tomcat9（jdk安装教程）（idea2020.1.1安装教程）（tomcat9）提取码：a6a0
ssm相关依赖下载（maven中央仓库）或者网盘下载 提取码：ee94

数据库

create database demo;
use demo;
create table user
(
    id       int auto_increment
        primary key,
    username varchar(20) null,
    gender   varchar(1)  null,
    age      int(3)      null
);
2、创建项目

选择模板

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_spring,第1张

选择项目位置

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_xml_02,第2张

在web-inf目录下创建classes和lib来存放编译文件和jar包

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_spring_03,第3张

右键项目名

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_java_04,第4张

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_spring_05,第5张

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_xml_06,第6张

找到我们创建的lib目录，选择

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_java_07,第7张

创建下图的目录结构

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_idea assembly如何创建项目_08,第8张

3、代码编写

User

package com.mystery.entity;

public class User {
    private Integer id;
    private String username;
    private String gender;
    private Integer age;

    public User() {
    }

    public User(Integer id, String username, String gender, Integer age) {
        this.id = id;
        this.username = username;
        this.gender = gender;
        this.age = age;
    }

    public Integer getId() {
        return id;
    }

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

    public String getUsername() {
        return username;
    }

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

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", gender='" + gender + '\'' +
                ", age=" + age +
                '}';
    }
}

UserController

package com.mystery.controller;

import com.mystery.service.IUserService;
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.RestController;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.io.UnsupportedEncodingException;

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

    @Autowired
    private IUserService userServcie;

    /*获取用户名，设置编码格式，不然数据传到前台显示问号*/
    @RequestMapping(value="/getUsername",produces = "text/plain;charset=utf-8")
    public String getUserName(ServletRequest request, ServletResponse response,Integer id){

        System.out.println(userServcie.getUserName(1));
        return userServcie.getUserName(1);

    }
}

UserService

package com.mystery.service;


public interface IUserService {


    /*获取用户名*/
    String getUserName(Integer id);
}

UserServiceImpl

package com.mystery.service.impl;

import com.mystery.dao.UserMapper;
import com.mystery.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserServcieImpl implements IUserService {

    @Autowired
    private UserMapper userMapper;

    /*获取用户名*/
    @Override
    public String getUserName(Integer id) {
        return userMapper.getUserName(id);
    }
}

UserMapper.java

package com.mystery.dao;

import com.mystery.entity.User;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.web.bind.annotation.RequestMapping;

@Repository
public interface UserMapper {

    /*获取用户名*/
    String getUserName(Integer id);

}

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="com.mystery.dao.UserMapper">

    <select id="getUserName" parameterType="String" resultType="String">
        select age from user WHERE id=#{id}
    </select>
</mapper>

ApplicationContext.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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--dao层配置文件开始-->
    <!--    1，配置连接池-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql:///demo?useUnicode=true&characterEncoding=UTF-8"/>
        <property name="username" value="root"/>
        <property name="password" value="root"/>
    </bean>

    <!--    2,配置生产SqlSession对象的工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--扫描pojo包给所有pojo包对象取别名-->
        <property name="typeAliasesPackage" value="com.mystery.entity"/>
    </bean>

    <!--    3,扫描接口包路径，生成包下所有接口的代理对象，并且放入spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mystery.dao"/>
    </bean>
    <!--dao层配置文件结束-->

    <!-- ********************************* -->
    <!--service层配置开始-->
    <!--    1,组件扫描配置-->
    <context:component-scan base-package="com.mystery.service"/>
    <!--    2，aop面向切面编程，切面就是切入点和通知的组合-->
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!--配置事务的通知-->
    <tx:advice id="advice">
        <tx:attributes>
            <tx:method name="save" propagation="REQUIRED"/>
            <tx:method name="update" propagation="REQUIRED"/>
            <tx:method name="del" propagation="REQUIRED"/>
            <tx:method name="find" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>
    <!--配置切面（切入点+通知）-->
    <aop:config>
        <!--配置切入点-->
        <aop:pointcut id="pointcut" expression="execution(* com.mystery.service.impl.*.*(..))"/>
        <!--切面的配置-->
        <aop:advisor advice-ref="advice" pointcut-ref="pointcut"/>
    </aop:config>
    <!--service层配置结束-->
</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-4.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- 注解扫描包 -->
    <context:component-scan base-package="com" />

    <!-- 开启注解 -->
    <mvc:annotation-driven />

    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
        <property name="prefix" value="/WEB-INF/jsp" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
         http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
    <!--  1,配置编码过滤器-->
    <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>
        <init-param>
            <param-name>forceRequestEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>forceResponseEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--  2,配置spring核心监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--重新制定spring配置文件路径-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:config/applicationContext.xml</param-value>
    </context-param>

    <!--  3,配置springmvc核心servlet-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:config/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

hello.jsp

<%--
  Created by IntelliJ IDEA.
  User: ChengZhihua
  Date: 2020/7/31
  Time: 16:06
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>hello,ssm</title>
</head>
<body>
    Hello SSM!!!
</body>
</html>

运行：

配置项目的tomcat

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_spring_09,第9张

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_idea assembly如何创建项目_10,第10张

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_spring_11,第11张

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_xml_12,第12张

localhost:8080/demo03/user/getUsername

idea assembly如何创建项目 用idea创建ssm项目,idea assembly如何创建项目 用idea创建ssm项目_idea assembly如何创建项目_13,第13张



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