From ece34fba9ffa60ce83582af8007b56cb7205446f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E9=B9=8F?= <1154799293@qq.com>
Date: Tue, 2 Aug 2022 14:58:10 +0800
Subject: [PATCH] =?UTF-8?q?2022.8.2=E6=8C=81=E4=B9=85=E5=B1=82users?=
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---
 .gitignore                                    |  1 -
 .../course/mapper/database/UsersMapper.java   | 19 ++++++++++-
 .../resources/mybatis/mapper/UsersMapper.xml  | 12 ++++++-
 .../com/snhanyue/mapper/UserMapperTests.java  | 32 ++++++++++++++++++-
 4 files changed, 60 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index ce4b726..90e15af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,6 @@ target
 # Log file
 *.log
 
-
 # BlueJ files
 *.ctxt
 
diff --git a/src/main/java/com/snhanyue/course/mapper/database/UsersMapper.java b/src/main/java/com/snhanyue/course/mapper/database/UsersMapper.java
index 2702d50..5997afa 100644
--- a/src/main/java/com/snhanyue/course/mapper/database/UsersMapper.java
+++ b/src/main/java/com/snhanyue/course/mapper/database/UsersMapper.java
@@ -2,6 +2,7 @@ package com.snhanyue.course.mapper.database;
 
 import com.snhanyue.course.entity.Users;
 import com.snhanyue.course.vo.UsersVo;
+import org.apache.ibatis.annotations.Param;
 import org.springframework.stereotype.Repository;
 
 
@@ -18,8 +19,24 @@ public interface UsersMapper {
      */
     int insert(Users users);
 
-    //查询方法
+    /**
+     * 查询数据
+     * @param username用户名
+     * @return 查询的数据
+     */
     UsersVo getByName(String username);
 
+    /**
+     *
+     * @param  id 主键编号
+     * @return 受影响行数
+     */
+    int Update(@Param("id") int id, @Param("username")String username);
 
+    /**
+     * 删除数据
+     * @param id 主键id
+     * @return受影响行数
+     */
+    int deleteUsers(int id);
 }
diff --git a/src/main/resources/mybatis/mapper/UsersMapper.xml b/src/main/resources/mybatis/mapper/UsersMapper.xml
index 4f65982..a515532 100644
--- a/src/main/resources/mybatis/mapper/UsersMapper.xml
+++ b/src/main/resources/mybatis/mapper/UsersMapper.xml
@@ -13,6 +13,17 @@
         )
     </insert>
 
+    <delete id="deleteUsers">
+        delete from users where id=#{id}
+    </delete>
+
+    <update id="Update">
+        update users
+        set username=#{username}
+        where id = #{id}
+    </update>
+
+
     <!-- CategorySimpleVO getByName(String name); -->
     <select id="getByName" resultMap="SimpleResultMap">
     select * from users where username=#{name}
@@ -24,7 +35,6 @@
         <id column="age" property="age" />
         <id column="phone" property="phone" />
         <id column="address_id" property="address_id" />
-
     </resultMap>
 
 
diff --git a/src/test/java/com/snhanyue/mapper/UserMapperTests.java b/src/test/java/com/snhanyue/mapper/UserMapperTests.java
index e58aa14..3519eb0 100644
--- a/src/test/java/com/snhanyue/mapper/UserMapperTests.java
+++ b/src/test/java/com/snhanyue/mapper/UserMapperTests.java
@@ -16,6 +16,9 @@ public class UserMapperTests {
     @Autowired
     UsersMapper mapper;
 
+    /**
+     * 插入users表测试
+     */
     @Test
     public void TestInsert(){
         Users users = new Users();
@@ -31,11 +34,38 @@ public class UserMapperTests {
 
     }
 
+    /**
+     * 查询users测试
+     */
     @Test
-    public void testGetByNameSuccessfully(){
+    public void testGetByName(){
         String name="陈鹏";
         UsersVo usersVo = mapper.getByName(name);
         System.out.println(usersVo.toString());
     }
 
+    /**
+     * 更改users表测试
+     */
+
+    @Test
+    public void testUpdate(){
+        int id=2;
+        String name="张三";
+        int row =mapper.Update(id,name);
+        System.out.println(row);
+    }
+
+
+    /**
+     * 删除user表数据测试
+     */
+
+    @Test
+    public void testDelete(){
+        int id =2;
+        int row = mapper.deleteUsers(id);
+        System.out.println(row);
+    }
+
 }
-- 
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