首先创建spring boot项目,导入相关依赖是必须的#### 导入依赖:
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.11</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>ThreadPool</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.83</version>
</dependency>
<!--druid数据库连接池依赖-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.2.8</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
在application.xml配置数据连接信息
server:
port: 8081
spring:
main:
allow-bean-definition-overriding: true
datasource:
username: root
password: 123456
url: jdbc:mysql://localhost:3306/tbl?serverTimezone=UTC&userUnicode=true&characterEncoding=utf-8
driver-class-name: com.mysql.cj.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
mybatis:
type-aliases-package: com.test.easycodeauto.domain
mapper-locations: classpath:mapper/*.xml
模板分享
先说一下模板在哪里配,它的位置是设置到其他设置到EasyCode
然后点开EasyCode,在这里分别设置,把我的模板分别粘贴复制进去即可,没有同名的就点加号创造同名文件。
controller.java.vm
##定义初始变量
#set($tableName = $tool.append($tableInfo.name, "Controller"))
##设置回调
$!callback.setFileName($tool.append($tableName, ".java"))
$!callback.setSavePath($tool.append($tableInfo.savePath, "/controller"))
##拿到主键
#if(!$tableInfo.pkColumn.isEmpty())
#set($pk = $tableInfo.pkColumn.get(0))
#end
#if($tableInfo.savePackageName)package $!{tableInfo.savePackageName}.#{end}controller;
import $!{tableInfo.savePackageName}.domain.$!{tableInfo.name};
import $!{tableInfo.savePackageName}.service.$!{tableInfo.name}Service;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import javax.annotation.Resource;
/**
* $!{tableInfo.comment}($!{tableInfo.name})表控制层
*
* @author $!author
* @since $!time.currTime()
*/
@RestController
@RequestMapping("$!tool.firstLowerCase($tableInfo.name)")
public class $!{tableName} {
/**
* 服务对象
*/
@Resource
private $!{tableInfo.name}Service $!tool.firstLowerCase($tableInfo.name)Service;
/**
* 查询所有数据
*
* @return 实例对象集合
*/
@GetMapping
public ResponseEntity<List> queryAll() {
return ResponseEntity.ok(this.$!{tool.firstLowerCase($tableInfo.name)}Service.queryAll());
}
/**
* 通过主键查询单条数据
*
* @param id 主键
* @return 单条数据
*/
@GetMapping("{id}")
public ResponseEntity<$!{tableInfo.name}> queryById(@PathVariable("id") $!pk.shortType id) {
return ResponseEntity.ok(this.$!{tool.firstLowerCase($tableInfo.name)}Service.queryById(id));
}
/**
* 新增数据
*
* @param $!{tool.firstLowerCase($tableInfo.name)} 实体
* @return 新增结果
*/
@PostMapping
public ResponseEntity<$!{tableInfo.name}> add($!{tableInfo.name} $!{tool.firstLowerCase($tableInfo.name)}) {
return ResponseEntity.ok(this.$!{tool.firstLowerCase($tableInfo.name)}Service.insert($!{tool.firstLowerCase($tableInfo.name)}));
}
/**
* 编辑数据
*
* @param $!{tool.firstLowerCase($tableInfo.name)} 实体
* @return 编辑结果
*/
@PutMapping
public ResponseEntity<$!{tableInfo.name}> edit($!{tableInfo.name} $!{tool.firstLowerCase($tableInfo.name)}) {
return ResponseEntity.ok(this.$!{tool.firstLowerCase($tableInfo.name)}Service.update($!{tool.firstLowerCase($tableInfo.name)}));
}
/**
* 删除数据
*
* @param id 主键
* @return 删除是否成功
*/
@DeleteMapping
public ResponseEntity<Boolean> deleteById($!pk.shortType id) {
return ResponseEntity.ok(this.$!{tool.firstLowerCase($tableInfo.name)}Service.deleteById(id));
}
}
serviceImpl.java.vm
##定义初始变量
#set($tableName = $tool.append($tableInfo.name, "ServiceImpl"))
##设置回调
$!callback.setFileName($tool.append($tableName, ".java"))
$!callback.setSavePath($tool.append($tableInfo.savePath, "/service/impl"))
##拿到主键
#if(!$tableInfo.pkColumn.isEmpty())
#set($pk = $tableInfo.pkColumn.get(0))
#end
#if($tableInfo.savePackageName)package $!{tableInfo.savePackageName}.#{end}service.impl;
import $!{tableInfo.savePackageName}.domain.$!{tableInfo.name};
import $!{tableInfo.savePackageName}.mapper.$!{tableInfo.name}Mapper;
import $!{tableInfo.savePackageName}.service.$!{tableInfo.name}Service;
import org.springframework.stereotype.Service;
import java.util.List;
import javax.annotation.Resource;
/**
* $!{tableInfo.comment}($!{tableInfo.name})表服务实现类
*
* @author $!author
* @since $!time.currTime()
*/
@Service("$!tool.firstLowerCase($!{tableInfo.name})Service")
public class $!{tableName} implements $!{tableInfo.name}Service {
@Resource
private $!{tableInfo.name}Mapper $!tool.firstLowerCase($!{tableInfo.name})Mapper;
/**
* 查询所有数据
*
* @return 实例对象集合
*/
@Override
public List<$!{tableInfo.name}> queryAll() {
return this.$!{tool.firstLowerCase($!{tableInfo.name})}Mapper.queryAll();
}
/**
* 通过ID查询单条数据
*
* @param $!pk.name 主键
* @return 实例对象
*/
@Override
public $!{tableInfo.name} queryById($!pk.shortType $!pk.name) {
return this.$!{tool.firstLowerCase($!{tableInfo.name})}Mapper.queryById($!pk.name);
}
/**
* 新增数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 实例对象
*/
@Override
public $!{tableInfo.name} insert($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name})) {
this.$!{tool.firstLowerCase($!{tableInfo.name})}Mapper.insert($!tool.firstLowerCase($!{tableInfo.name}));
return $!tool.firstLowerCase($!{tableInfo.name});
}
/**
* 修改数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 实例对象
*/
@Override
public $!{tableInfo.name} update($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name})) {
this.$!{tool.firstLowerCase($!{tableInfo.name})}Mapper.update($!tool.firstLowerCase($!{tableInfo.name}));
return this.queryById($!{tool.firstLowerCase($!{tableInfo.name})}.get$!tool.firstUpperCase($pk.name)());
}
/**
* 通过主键删除数据
*
* @param $!pk.name 主键
* @return 是否成功
*/
@Override
public boolean deleteById($!pk.shortType $!pk.name) {
return this.$!{tool.firstLowerCase($!{tableInfo.name})}Mapper.deleteById($!pk.name) > 0;
}
}
service.java.vm
##定义初始变量
#set($tableName = $tool.append($tableInfo.name, "Service"))
##设置回调
$!callback.setFileName($tool.append($tableName, ".java"))
$!callback.setSavePath($tool.append($tableInfo.savePath, "/service"))
##拿到主键
#if(!$tableInfo.pkColumn.isEmpty())
#set($pk = $tableInfo.pkColumn.get(0))
#end
#if($tableInfo.savePackageName)package $!{tableInfo.savePackageName}.#{end}service;
import $!{tableInfo.savePackageName}.domain.$!{tableInfo.name};
import java.util.List;
/**
* $!{tableInfo.comment}($!{tableInfo.name})表服务接口
*
* @author $!author
* @since $!time.currTime()
*/
public interface $!{tableName} {
/**
* 查询所有数据
*
* @return 实例对象集合
*/
List<$!{tableInfo.name}> queryAll();
/**
* 通过ID查询单条数据
*
* @param $!pk.name 主键
* @return 实例对象
*/
$!{tableInfo.name} queryById($!pk.shortType $!pk.name);
/**
* 新增数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 实例对象
*/
$!{tableInfo.name} insert($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name}));
/**
* 修改数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 实例对象
*/
$!{tableInfo.name} update($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name}));
/**
* 通过主键删除数据
*
* @param $!pk.name 主键
* @return 是否成功
*/
boolean deleteById($!pk.shortType $!pk.name);
}
mapper.java.vm
##定义初始变量
#set($tableName = $tool.append($tableInfo.name, "Mapper"))
##设置回调
$!callback.setFileName($tool.append($tableName, ".java"))
$!callback.setSavePath($tool.append($tableInfo.savePath, "/mapper"))
##拿到主键
#if(!$tableInfo.pkColumn.isEmpty())
#set($pk = $tableInfo.pkColumn.get(0))
#end
#if($tableInfo.savePackageName)package $!{tableInfo.savePackageName}.#{end}mapper;
import $!{tableInfo.savePackageName}.domain.$!{tableInfo.name};
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
/**
* $!{tableInfo.comment}($!{tableInfo.name})表数据库访问层
*
* @author $!author
* @since $!time.currTime()
*/
@Mapper
public interface $!{tableName} {
/**
* 查询所有数据
*
* @return 实例对象集合
*/
List<$!{tableInfo.name}> queryAll();
/**
* 通过ID查询单条数据
*
* @param $!pk.name 主键
* @return 实例对象
*/
$!{tableInfo.name} queryById($!pk.shortType $!pk.name);
/**
* 统计总行数
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 查询条件
* @return 总行数
*/
long count($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name}));
/**
* 新增数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 影响行数
*/
int insert($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name}));
/**
* 批量新增数据(MyBatis原生foreach方法)
*
* @param entities List<$!{tableInfo.name}> 实例对象列表
* @return 影响行数
*/
int insertBatch(@Param("entities") List<$!{tableInfo.name}> entities);
/**
* 批量新增或按主键更新数据(MyBatis原生foreach方法)
*
* @param entities List<$!{tableInfo.name}> 实例对象列表
* @return 影响行数
* @throws org.springframework.jdbc.BadSqlGrammarException 入参是空List的时候会抛SQL语句错误的异常,请自行校验入参
*/
int insertOrUpdateBatch(@Param("entities") List<$!{tableInfo.name}> entities);
/**
* 修改数据
*
* @param $!tool.firstLowerCase($!{tableInfo.name}) 实例对象
* @return 影响行数
*/
int update($!{tableInfo.name} $!tool.firstLowerCase($!{tableInfo.name}));
/**
* 通过主键删除数据
*
* @param $!pk.name 主键
* @return 影响行数
*/
int deleteById($!pk.shortType $!pk.name);
}
domain.java.vm
##引入宏定义
$!{define.vm}
##使用宏定义设置回调(保存位置与文件后缀)
#save("/domain", ".java")
##使用宏定义设置包后缀
#setPackageSuffix("domain")
##使用全局变量实现默认包导入
$!{autoImport.vm}
import java.io.Serializable;
##使用宏定义实现类注释信息
#tableComment("实体类")
public class $!{tableInfo.name} implements Serializable {
private static final long serialVersionUID = $!tool.serial();
#foreach($column in $tableInfo.fullColumn)
#if(${column.comment})/**
* ${column.comment}
*/#end
private $!{tool.getClsNameByFullName($column.type)} $!{column.name};
#end
#foreach($column in $tableInfo.fullColumn)
##使用宏定义实现get,set方法
#getSetMethod($column)
#end
}
mapper.xml.vm
##引入mybatis支持
$!{mybatisSupport.vm}
##设置保存名称与保存位置
$!callback.setFileName($tool.append($!{tableInfo.name}, "Mapper.xml"))
$!callback.setSavePath($tool.append($modulePath, "/src/main/resources/mapper"))
##拿到主键
#if(!$tableInfo.pkColumn.isEmpty())
#set($pk = $tableInfo.pkColumn.get(0))
#end
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="$!{tableInfo.savePackageName}.mapper.$!{tableInfo.name}Mapper">
<resultMap type="$!{tableInfo.savePackageName}.domain.$!{tableInfo.name}" id="$!{tableInfo.name}Map">
#foreach($column in $tableInfo.fullColumn)
<result property="$!column.name" column="$!column.obj.name" jdbcType="$!column.ext.jdbcType"/>
#end
</resultMap>
<!--查询所有-->
<select id="queryAll" resultMap="$!{tableInfo.name}Map">
select
#allSqlColumn()
from $!tableInfo.obj.name
</select>
<!--查询单个-->
<select id="queryById" resultMap="$!{tableInfo.name}Map">
select
#allSqlColumn()
from $!tableInfo.obj.name
where $!pk.obj.name = #{$!pk.name}
</select>
<!--查询指定行数据-->
<select id="queryAllByLimit" resultMap="$!{tableInfo.name}Map">
select
#allSqlColumn()
from $!tableInfo.obj.name
<where>
#foreach($column in $tableInfo.fullColumn)
<if test="$!column.name != null#if($column.type.equals("java.lang.String")) and $!column.name != ''#end">
and $!column.obj.name = #{$!column.name}
</if>
#end
</where>
limit #{pageable.offset}, #{pageable.pageSize}
</select>
<!--统计总行数-->
<select id="count" resultType="java.lang.Long">
select count(1)
from $!tableInfo.obj.name
<where>
#foreach($column in $tableInfo.fullColumn)
<if test="$!column.name != null#if($column.type.equals("java.lang.String")) and $!column.name != ''#end">
and $!column.obj.name = #{$!column.name}
</if>
#end
</where>
</select>
<!--新增所有列-->
<insert id="insert" keyProperty="$!pk.name" useGeneratedKeys="true">
insert into $!{tableInfo.obj.name}(#foreach($column in $tableInfo.otherColumn)$!column.obj.name#if($velocityHasNext), #end#end)
values (#foreach($column in $tableInfo.otherColumn)#{$!{column.name}}#if($velocityHasNext), #end#end)
</insert>
<insert id="insertBatch" keyProperty="$!pk.name" useGeneratedKeys="true">
insert into $!{tableInfo.obj.name}(#foreach($column in $tableInfo.otherColumn)$!column.obj.name#if($velocityHasNext), #end#end)
values
<foreach collection="entities" item="entity" separator=",">
(#foreach($column in $tableInfo.otherColumn)#{entity.$!{column.name}}#if($velocityHasNext), #end#end)
</foreach>
</insert>
<insert id="insertOrUpdateBatch" keyProperty="$!pk.name" useGeneratedKeys="true">
insert into $!{tableInfo.obj.name}(#foreach($column in $tableInfo.otherColumn)$!column.obj.name#if($velocityHasNext), #end#end)
values
<foreach collection="entities" item="entity" separator=",">
(#foreach($column in $tableInfo.otherColumn)#{entity.$!{column.name}}#if($velocityHasNext), #end#end)
</foreach>
on duplicate key update
#foreach($column in $tableInfo.otherColumn)$!column.obj.name = values($!column.obj.name)#if($velocityHasNext),
#end#end
</insert>
<!--通过主键修改数据-->
<update id="update">
update $!{tableInfo.obj.name}
<set>
#foreach($column in $tableInfo.otherColumn)
<if test="$!column.name != null#if($column.type.equals("java.lang.String")) and $!column.name != ''#end">
$!column.obj.name = #{$!column.name},
</if>
#end
</set>
where $!pk.obj.name = #{$!pk.name}
</update>
<!--通过主键删除-->
<delete id="deleteById">
delete from $!{tableInfo.obj.name} where $!pk.obj.name = #{$!pk.name}
</delete>
</mapper>
到此结束。。。。
https://blog.csdn.net/weixin_43982359/article/details/121799836