spring 完结

Spring/Spring5/code/shangguigu06/src/Main.java

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+/**
+ * @author yinkanglong
+ * @version $Id: ${NAME}, v 0.1 ${YEAR}-${MONTH}-${DAY} ${TIME} yinkanglong Exp $
+ */
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}

Spring/Spring5/code/shangguigu06/src/bean01.xml

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+<?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"
+       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">
+
+    <!--开启组件扫描
+        1. 如果扫描多个包，多个包之间使用逗号隔开
+        2. 扫描包的上层目录-->
+    <context:component-scan base-package="com.ykl"></context:component-scan>
+
+    <!--引入外部属性文件-->
+<!--    <context:property-path path="classpath:jdbc.properties"/>-->
+
+<!--    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">-->
+<!--        <property name="driverClassName" value="${prop.driverClass}"></property>-->
+<!--        <property name="url" value="${prop.url}"></property>-->
+<!--        <property name="username" value="${prop.username}"></property>-->
+<!--        <property name="password" value="${prop.password}"></property>-->
+<!--    </bean>-->
+
+    <!--引入数据库连接-->
+    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
+        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
+        <property name="url" value="jdbc:mysql://localhost:3310/user"></property>
+        <property name="username" value="root"></property>
+        <property name="password" value="123456"></property>
+    </bean>
+
+    <!--创建jdbctemplate对象-->
+    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
+        <!--注入参数-->
+        <property name="dataSource" ref="dataSource"></property>
+    </bean>
+
+
+</beans>
+

Spring/Spring5/code/shangguigu06/src/com/ykl/dao/UserDao.java

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+/**
+ * Alipay.com Inc.
+ * Copyright (c) 2004-2022 All Rights Reserved.
+ */
+package com.ykl.dao;
+
+import com.ykl.entity.User;
+
+import java.awt.print.Book;
+import java.util.List;
+
+/**
+ * @author yinkanglong
+ * @version : UserDo, v 0.1 2022-10-09 12:03 yinkanglong Exp $
+ */
+public interface UserDao {
+    public int addUser(User user);
+
+    public void updateUser(User user);
+
+    public void delete(String id);
+
+    int selectCount();
+
+    User findUserInfo(String id);
+
+    List<User> findAll();
+
+    void batchAdd(List<Object[]> batchArgs);
+}

Spring/Spring5/code/shangguigu06/src/com/ykl/dao/UserDaoImpl.java

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+/**
+ * Alipay.com Inc.
+ * Copyright (c) 2004-2022 All Rights Reserved.
+ */
+package com.ykl.dao;
+
+import com.mysql.cj.result.Row;
+import com.ykl.entity.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.BeanPropertyRowMapper;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author yinkanglong
+ * @version : UserDoImpl, v 0.1 2022-10-09 12:04 yinkanglong Exp $
+ */
+@Repository
+public class UserDaoImpl implements UserDao {
+
+    @Autowired
+    private JdbcTemplate jdbcTemplate;
+
+    @Override
+    public int addUser(User user) {
+        String sql = "insert into user values(?,?,?)";
+        Object[] args = {user.getUserId(),user.getUsername(),user.getUserStatus()};
+
+        int update = jdbcTemplate.update(sql,args);
+        System.out.println(update);
+        return update;
+    }
+
+    @Override
+    public void updateUser(User user) {
+        String sql = "update user set username=?,userstatus=? where userid=?";
+        Object[] args = {user.getUsername(),user.getUserStatus(),user.getUserId()};
+
+        int update = jdbcTemplate.update(sql,args);
+        System.out.println(update);
+        return ;
+    }
+
+    @Override
+    public void delete(String id) {
+        String sql = "delete from user where userid=?";
+        Object[] args = {id,};
+
+        int update = jdbcTemplate.update(sql,args);
+        System.out.println(update);
+        return ;
+    }
+
+
+    /**
+     * 查询返回整数
+     * @return
+     */
+    @Override
+    public int selectCount(){
+        String sql = "select count(*) from user";
+        Integer count = jdbcTemplate.queryForObject(sql,Integer.class);
+        return count;
+    }
+
+    /**
+     * 查询返回单个记录
+     * @param id
+     * @return
+     */
+    @Override
+    public User findUserInfo(String id){
+        String sql = "select * from user where userid=?";
+        User user = jdbcTemplate.queryForObject(sql,new BeanPropertyRowMapper<User>(User.class),id);
+        return user;
+    }
+
+    @Override
+    public List<User> findAll() {
+        String sql = "select * from user";
+        List<User> users = jdbcTemplate.query(sql, new BeanPropertyRowMapper<User>(User.class));
+        return users;
+    }
+
+    @Override
+    public void batchAdd(List<Object[]> batchArgs) {
+        String sql = "insert into user values(?,?,?)";
+        int [] ints = jdbcTemplate.batchUpdate(sql,batchArgs);
+        System.out.println(Arrays.toString(ints));
+    }
+
+
+}

Spring/Spring5/code/shangguigu06/src/com/ykl/entity/User.java

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+/**
+ * Alipay.com Inc.
+ * Copyright (c) 2004-2022 All Rights Reserved.
+ */
+package com.ykl.entity;
+
+/**
+ * @author yinkanglong
+ * @version : User, v 0.1 2022-10-10 09:14 yinkanglong Exp $
+ */
+public class User {
+    private String userId;
+    private String username;
+    private String userStatus;
+
+    /**
+     * Getter method for property <tt>userId</tt>.
+     *
+     * @return property value of userId
+     */
+    public String getUserId() {
+        return userId;
+    }
+
+    /**
+     * Setter method for property <tt>counterType</tt>.
+     *
+     * @param userId value to be assigned to property userId
+     */
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    /**
+     * Getter method for property <tt>username</tt>.
+     *
+     * @return property value of username
+     */
+    public String getUsername() {
+        return username;
+    }
+
+    /**
+     * Setter method for property <tt>counterType</tt>.
+     *
+     * @param username value to be assigned to property username
+     */
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    /**
+     * Getter method for property <tt>userStatus</tt>.
+     *
+     * @return property value of userStatus
+     */
+    public String getUserStatus() {
+        return userStatus;
+    }
+
+    /**
+     * Setter method for property <tt>counterType</tt>.
+     *
+     * @param userStatus value to be assigned to property userStatus
+     */
+    public void setUserStatus(String userStatus) {
+        this.userStatus = userStatus;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "userId='" + userId + '\'' +
+                ", username='" + username + '\'' +
+                ", userStatus='" + userStatus + '\'' +
+                '}';
+    }
+}

Spring/Spring5/code/shangguigu06/src/com/ykl/service/UserService.java

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+/**
+ * Alipay.com Inc.
+ * Copyright (c) 2004-2022 All Rights Reserved.
+ */
+package com.ykl.service;
+
+import com.ykl.dao.UserDao;
+import com.ykl.entity.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.awt.print.Book;
+import java.util.List;
+
+/**
+ * @author yinkanglong
+ * @version : UserService, v 0.1 2022-10-10 09:05 yinkanglong Exp $
+ */
+@Service
+public class UserService {
+    @Autowired
+    private UserDao userDao;
+
+    public void addUser(User user){
+        userDao.addUser(user);
+    }
+
+    public void updateUser(User user){
+        userDao.updateUser(user);
+    }
+
+    public void deleteUser(String id){
+        userDao.delete(id);
+    }
+
+    public int  findCount(){
+        int number = userDao.selectCount();
+        return number;
+    }
+    public User  findOne(String id){
+        return userDao.findUserInfo(id);
+    }
+
+    public List<User> findAll(){
+        return userDao.findAll();
+    }
+
+
+    public void batchAdd(List<Object[]> batchArgs){
+        userDao.batchAdd(batchArgs);
+    }
+}

Spring/Spring5/code/shangguigu06/src/com/ykl/test/Test01.java

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+/**
+ * Alipay.com Inc.
+ * Copyright (c) 2004-2022 All Rights Reserved.
+ */
+package com.ykl.test;
+
+import com.ykl.entity.User;
+import com.ykl.service.UserService;
+import org.junit.Test;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import sun.security.util.ArrayUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author yinkanglong
+ * @version : Test01, v 0.1 2022-10-08 16:09 yinkanglong Exp $
+ */
+public class Test01 {
+
+
+    @Test
+    public void testAdd(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        User user = new User();
+        user.setUserId("123");
+        user.setUsername("yinkanglong");
+        user.setUserStatus("up");
+        userService.addUser(user);
+    }
+
+    @Test
+    public void testUpdate(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        User user = new User();
+        user.setUserId("1");
+        user.setUsername("ykl1");
+        user.setUserStatus("up1");
+        userService.addUser(user);
+
+        user.setUserStatus("down1");
+        userService.updateUser(user);
+
+    }
+
+    @Test
+    public void testDelete(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        User user = new User();
+        user.setUserId("2");
+        user.setUsername("ykl2");
+        user.setUserStatus("up2");
+        userService.addUser(user);
+
+        userService.deleteUser(user.getUserId());
+    }
+
+
+    @Test
+    public void testFindCount(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        int num = userService.findCount();
+        System.out.println(num);
+    }
+
+    @Test
+    public void testFindOne(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        User user = userService.findOne("123");
+        System.out.println(user);
+    }
+
+    @Test
+    public void testFindAll(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+        List<User> users = userService.findAll();
+        System.out.println(users);
+    }
+
+    @Test
+    public void testBatchAdd(){
+        ApplicationContext context = new ClassPathXmlApplicationContext("bean01.xml");
+        UserService userService = context.getBean("userService",UserService.class);
+
+
+        List<Object[]> batchArgs = new ArrayList<>();
+
+        Object[] o1 = {"111","java","a"};
+        Object[] o2 = {"222","c++","b"};
+        Object[] o3 = {"333","mysql","c"};
+        batchArgs.add(o1);
+        batchArgs.add(o2);
+        batchArgs.add(o3);
+
+        userService.batchAdd(batchArgs);
+    }
+}

Spring/Spring5/code/shangguigu06/src/jdbc.properties

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+prop.driverClass=com.mysql.jdbc.Driver
+prop.url=jdbc:mysql://localhost:3306/user
+prop.username=root
+prop.password=123456