SSM整合

SSM整合的步骤

1. 建库,建表,插入数据

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

CREATE DATABASE IF NOT EXISTS `ssmuser` DEFAULT CHARACTER SET utf8;
USE `ssmuser`;

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `user_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
  `card_type` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `card_no` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `user_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `user_sex` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `user_age` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `user_role` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`user_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = COMPACT;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('15968162087363060', '身份证', '114264195202156467', '张三', '男', '30', '办事人员和有关人员');
INSERT INTO `user` VALUES ('15968162346981977', '护照', 'A32532654', '李四', '男', '29', '不便分类的其他从业人员');
INSERT INTO `user` VALUES ('15968162893439470', '身份证', '112344198709094532', '王五', '男', '31', '农、林、牧、渔、水利业生产人员');
INSERT INTO `user` VALUES ('15968163245457143', '身份证', '453234199909094532', '赵六', '男', '34', '未知');
INSERT INTO `user` VALUES ('15968163514764733', '军官证', '军7657868', '钱七', '女', '23', '不便分类的其他从业人员');
INSERT INTO `user` VALUES ('15968165113694372', '台湾往来大陆通行证', '43256786', '周八', '女', '48', '生产、运输设备操作人员及有关人员');
INSERT INTO `user` VALUES ('15968165371931786', '港澳居民通行证', 'C98767665', '吴九', '女', '35', '不便分类的其他从业人员');
INSERT INTO `user` VALUES ('15968941217553030', '身份证', '343546199801018768', '郑十', '男', '22', '军人');
INSERT INTO `user` VALUES ('15968943937844616', '身份证', '445453199603025756', '冯十一', '女', '31', '不便分类的其他从业人员');
INSERT INTO `user` VALUES ('15968944123869023', '护照', 'B54322654', '陈十二', '女', '39', '农、林、牧、渔、水利业生产人员');
INSERT INTO `user` VALUES ('15968953962316864', '身份证', '110232199505056789', '朱十三', '女', '33', '商业、服务业人员');
INSERT INTO `user` VALUES ('15968954638794962', '身份证', '110654196604079098', '孔十四', '女', '29', '生产、运输设备操作人员及有关人员');

SET FOREIGN_KEY_CHECKS = 1;

2. 新建Maven项目,选择webapp模板

3. 创建包

com.powernode.controller;
com.powernode.mapper;
com.powernode.service;
com.powernode.service.impl;
com.powernode.pojo;

4. 修改pom.xml文件引入依赖

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0modelVersion>

  <groupId>org.examplegroupId>
  <artifactId>springmvc-006-ssmartifactId>
  <version>1.0-SNAPSHOTversion>
  <packaging>warpackaging>

  
  <properties>
    
    <junit.version>4.13.2junit.version>
    
    <spring.version>6.0.2spring.version>
    
    <mybatis.version>3.5.10mybatis.version>
    
    <mybatis.spring.version>3.0.1mybatis.spring.version>
    
    <mybatis.paginator.version>1.2.15mybatis.paginator.version>
    
    <mysql.version>8.0.30mysql.version>
    
    <slf4j.version>1.6.4slf4j.version>
    
    <druid.version>1.2.13druid.version>
    
    <pagehelper.version>5.3.1pagehelper.version>
    
    <jstl.version>2.0.0jstl.version>
    
    <servlet-api.version>5.0.0servlet-api.version>
    
    <jsp-api.version>2.0jsp-api.version>
    
    <jackson.version>2.14.2jackson.version>
  properties>


  <dependencies>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-beansartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aspectsartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jmsartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-context-supportartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-testartifactId>
      <version>6.0.2version>
    dependency>
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>${mybatis.version}version>
    dependency>
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>${mybatis.spring.version}version>
    dependency>
    <dependency>
      <groupId>com.github.miemiedevgroupId>
      <artifactId>mybatis-paginatorartifactId>
      <version>${mybatis.paginator.version}version>
    dependency>
    <dependency>
      <groupId>com.github.pagehelpergroupId>
      <artifactId>pagehelperartifactId>
      <version>${pagehelper.version}version>
    dependency>
    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>${mysql.version}version>
    dependency>
    
    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>druidartifactId>
      <version>${druid.version}version>
    dependency>

    
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>${junit.version}version>
      <scope>testscope>
    dependency>

    
    <dependency>
      <groupId>org.glassfish.webgroupId>
      <artifactId>jakarta.servlet.jsp.jstlartifactId>
      <version>${jstl.version}version>
    dependency>
    <dependency>
      <groupId>jakarta.servletgroupId>
      <artifactId>jakarta.servlet-apiartifactId>
      <version>${servlet-api.version}version>
      <scope>providedscope>
    dependency>
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jsp-apiartifactId>
      <scope>providedscope>
      <version>${jsp-api.version}version>
    dependency>
    
    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-databindartifactId>
      <version>${jackson.version}version>
    dependency>
  dependencies>

  
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.pluginsgroupId>
        <artifactId>maven-compiler-pluginartifactId>
        <configuration>
          <source>17source>
          <target>17target>
          <encoding>UTF-8encoding>
        configuration>
      plugin>
    plugins>
    
    <resources>
      <resource>
        <directory>src/main/javadirectory>
        <includes>
          <include>**/*.propertiesinclude>
          <include>**/*.xmlinclude>
        includes>
        <filtering>falsefiltering>
      resource>
      <resource>
        <directory>src/main/resourcesdirectory>
        <includes>
          <include>**/*.propertiesinclude>
          <include>**/*.xmlinclude>
        includes>
        <filtering>falsefiltering>
      resource>
    resources>
  build>
project>

5. 添加jdbc.properties属性文件

jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmuser
jdbc.username=root
jdbc.password=root

6. 添加mybatis-config.xml文件

DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <settings>
        
        <setting name="logImpl" value="STDOUT_LOGGING"/>
        
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    settings>
configuration>

7. 添加applicationContext_mapper.xml文件(数据访问层的核心配置文件)

<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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

    
    <context:property-placeholder location="classpath:jdbc.properties"/>
    
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    bean>
    
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        
        <property name="dataSource" ref="dataSource"/>
        
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        
        <property name="typeAliasesPackage" value="com.powernode.pojo"/>
    bean>
    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.powernode.mapper"/>
    bean>
beans>

8. 添加applicationContext_service.xml文件(业务逻辑层的核心配置文件)

<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 https://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 https://www.springframework.org/schema/aop/spring-aop.xsd">

    
    <context:component-scan base-package="com.powernode.service.impl"/>
    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        
        <property name="dataSource" ref="dataSource"/>
    bean>
    
    <tx:advice id="myadvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*select*" read-only="true"/>
            <tx:method name="*find*" read-only="true"/>
            <tx:method name="*serach*" read-only="true"/>
            <tx:method name="*get*" read-only="true"/>
            <tx:method name="*insert*" propagation="REQUIRED"/>
            <tx:method name="*add*" propagation="REQUIRED"/>
            <tx:method name="*save*" propagation="REQUIRED"/>
            <tx:method name="*set*" propagation="REQUIRED"/>
            <tx:method name="*update*" propagation="REQUIRED"/>
            <tx:method name="*change*" propagation="REQUIRED"/>
            <tx:method name="*modify*" propagation="REQUIRED"/>
            <tx:method name="*delete*" propagation="REQUIRED"/>
            <tx:method name="*drop*" propagation="REQUIRED"/>
            <tx:method name="*remove*" propagation="REQUIRED"/>
            <tx:method name="*clear*" propagation="REQUIRED"/>
            <tx:method name="*" propagation="SUPPORTS"/>
        tx:attributes>
    tx:advice>
    
    <aop:config>
        <aop:pointcut id="mycut" expression="execution(* com.powernode.service.impl.*.*(..))"/>
        <aop:advisor advice-ref="myadvice" pointcut-ref="mycut"/>
    aop:config>
beans>

9. 添加spirngmvc.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

    
    <context:component-scan base-package="com.powernode.controller"/>
    
    <mvc:annotation-driven/>
beans>

10. web.xml文件,注册spirngmvc框架,并注册Spring框架

<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_4_0.xsd"
         version="4.0">
    
    <servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:springmvc.xmlparam-value>
        init-param>
    servlet>
    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:applicationContext_*.xmlparam-value>
    context-param>
web-app>

11. 新建实体类user

package com.powernode.pojo;

public class User {
    private String userId;
    private String cardType;
    private String cardNo;
    private String userName;
    private String userSex;
    private String userAge;
    private String userRole;
    // 省略构造方法，set、get、toString方法
}

12. 新建UserMapper.java接口

package com.powernode.mapper;

import com.powernode.pojo.User;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface UserMapper {
    List<User> selectUserPage(@Param("userName") String userName,@Param("userSex") String userSex,@Param("starRow") int starRow);
    int createUser(User user);
    int deleteUserById(String userId);
    int getRowCount(@Param("userName") String userName,@Param("userSex") String userSex);
    int updateUserById(User user);
}

13. 新建UserMapper.xml实现增删查所有功能,没有更新

DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.powernode.mapper.UserMapper">
    <select id="selectUserPage" resultType="User">
        select * from user
        <where>
            <if test="userName != null and userName != ''">
                and user_name like concat('%',#{userName},'%')
            if>
            <if test="userSex != null and userSex != ''">
                and user_sex = #{userSex}
            if>
        where>
        limit #{starRow}, 5
    select>
    
    <insert id="createUser" parameterType="User">
        insert into user values (#{userId},#{cardType},#{cardNo},#{userName},#{userSex},#{userAge},#{userRole})
    insert>

    <delete id="deleteUserById" parameterType="String">
        delete from user where user_id = #{userId}
    delete>

    <select id="getRowCount" resultType="int">
        select count(*) from user
        <where>
            <if test="userName != null and userName != ''">
                and user_name like concat('%',#{userName},'%')
            if>
            <if test="userSex != null and userSex != ''">
                and user_sex = #{userSex}
            if>
        where>
    select>
    
    <update id="updateUserById" parameterType="User">
        update user
        set
            card_type = #{cardType},
            card_no = #{cardNo},
            user_name = #{userName},
            user_sex = #{userSex},
            user_age = #{userAge},
            user_role = #{userRole}
        where user_id = #{userId}
    update>
mapper>

14. 新建service接口和实现类

package com.powernode.service;

import com.powernode.pojo.User;

import java.util.List;

public interface UserService {

    List<User> selectUserPage(String userName, String userSex, int starRow);
    int createUser(User user);
    int deleteUserById(String userId);
    int getRowCount(String userName,String userSex);
    int updateUserById(User user);
}

package com.powernode.service.impl;

import com.powernode.mapper.UserMapper;
import com.powernode.pojo.User;
import com.powernode.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> selectUserPage(String userName, String userSex, int starRow) {
        return userMapper.selectUserPage(userName, userSex, starRow);
    }

    @Override
    public int createUser(User user) {
        return userMapper.createUser(user);
    }

    @Override
    public int deleteUserById(String userId) {
        return userMapper.deleteUserById(userId);
    }

    @Override
    public int getRowCount(String userName, String userSex) {
        return userMapper.getRowCount(userName, userSex);
    }

    @Override
    public int updateUserById(User user) {
        return userMapper.updateUserById(user);
    }
}

15. 新建测试类,完成所有功能的测试

package test;

import com.powernode.pojo.User;
import com.powernode.service.UserService;
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;

import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext_mapper.xml","classpath:applicationContext_service.xml"})
public class MyTest {
    @Autowired
    UserService userService;

    @Test
    public void testSelectUserPage(){
        List<User> list = userService.selectUserPage("三","男",0);
        list.forEach(user -> System.out.println(user));
    }

    @Test
    public void testCreateUser(){
        User user = new User("1","1","1","1","1","1","1");
        int count = userService.createUser(user);
        System.out.println(count);
    }
    @Test
    public void testUpdateUserById(){
        User user = new User("1","2","2","1","1","1","1");
        int count = userService.updateUserById(user);
        System.out.println(count);
    }

    @Test
    public void testDeleteUserById(){
        int count = userService.deleteUserById("1");
        System.out.println(count);
    }

    @Test
    public void testGetRowCount(){
        int count = userService.getRowCount(null,null);
        System.out.println(count);
    }
}

16. 新建控制器,完成所有功能

package com.powernode.controller;

import com.powernode.pojo.User;
import com.powernode.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
// 在服务器端支持跨域访问
@CrossOrigin
// 如果本类中全部都是ajax请求,则使用此注解,方法上的@ResponseBody可不写
@RestController
@RequestMapping("/user")
public class UserController {

    public static final int PAGE_SIZE = 5;

    @Autowired
    private UserService userService;

    @RequestMapping("/selectUserPage")
    public List<User> selectUserPage(String userName, String userSex, Integer page){
        // 根据页码计算起始行
        int startRow = 0;
        if (page != null) {
            startRow = (page - 1) * PAGE_SIZE;
        }
        return userService.selectUserPage(userName, userSex, startRow);
    }
    @RequestMapping("/createUser")
    public int createUser(User user){
        String userId = System.currentTimeMillis() + "";
        user.setUserId(userId);
        return userService.createUser(user);
    }
    @RequestMapping("/deleteUserById")
    public int deleteUserById(String userId){
        return userService.deleteUserById(userId);
    }
    @RequestMapping("/getRowCount")
    public int getRowCount(String userName,String userSex){
        return userService.getRowCount(userName, userSex);
    }
    @RequestMapping("/updateUserById")
    public int updateUserById(User user){
        return userService.updateUserById(user);
    }
}