SpringBoot秘籍七、集成mybatisplus实战

2019-07-18 10:43:52 阅读：188 来源： 互联网

标签：mybatisplus SpringBoot 秘籍 import commonfile com public String

在SpringBoot秘籍六基础上做如下修改：

pom.xml
我们删除mybatis-spring-boot-starter和pagehelper-spring-boot-starter依赖。
新增依赖：

<!-- mybatis plus -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.0.5</version>
</dependency>

application.properties
去掉mybatis和pagehelper的配置项
新增配置项：

#mybatis plus
mybatis-plus.configLocation=classpath:mybatis/mybatis-config.xml
mybatis-plus.mapperLocations=classpath*:/mybatis/**/*Mapper.xml
mybatis-plus.typeAliasesPackage=com.javasgj.springboot.mybatisplus.domain
mybatis-plus.typeAliasesSuperType=com.javasgj.springboot.mybatisplus.domain.BaseEntity

mybatis-config.xml
新增分页插件：

<plugins>  
    <!-- mybatisplus分页拦截器 -->
   	<plugin interceptor="com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor">
    </plugin>  
</plugins>

好了，开始实战

mybatisplus开发指南：https://mp.baomidou.com/

1、创建实体类
Pagination：

package com.javasgj.springboot.mybatisplus.domain;

import com.alibaba.fastjson.annotation.JSONField;
import com.baomidou.mybatisplus.annotation.TableField;

/**
 * 分页工具类
 */
public class Pagination {

	/**
	 * 当前页码
	 */
	@TableField(exist = false)
	@JSONField(serialize = false)
	protected int pageIndex;
	
	/**
	 * 每页大小
	 */
	@TableField(exist = false)
	@JSONField(serialize = false)
	protected int pageSize;
	
	
	public int getPageIndex() {
		return pageIndex;
	}
	public void setPageIndex(int pageIndex) {
		this.pageIndex = pageIndex;
	}
	public int getPageSize() {
		return pageSize;
	}
	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}
}

BaseEntity：

package com.javasgj.springboot.mybatisplus.domain;

import java.util.Date;

import com.alibaba.fastjson.annotation.JSONField;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;

/**
 * 基础实体类
 */
public class BaseEntity extends Pagination {

	// 主键
	@TableId(type=IdType.UUID)
	protected String id;
	
	// 创建人
	protected String cjrId;
	protected String cjr;
	@JSONField(format = "yyyy-MM-dd HH:mm:ss")
	protected Date cjSj;
	
	// 更新人
	protected String gxrId;
	protected String gxr;
	@JSONField(format = "yyyy-MM-dd HH:mm:ss")
	protected Date gxSj;
	
	
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getCjrId() {
		return cjrId;
	}
	public void setCjrId(String cjrId) {
		this.cjrId = cjrId;
	}
	public String getCjr() {
		return cjr;
	}
	public void setCjr(String cjr) {
		this.cjr = cjr;
	}
	public Date getCjSj() {
		return cjSj;
	}
	public void setCjSj(Date cjSj) {
		this.cjSj = cjSj;
	}
	public String getGxrId() {
		return gxrId;
	}
	public void setGxrId(String gxrId) {
		this.gxrId = gxrId;
	}
	public String getGxr() {
		return gxr;
	}
	public void setGxr(String gxr) {
		this.gxr = gxr;
	}
	public Date getGxSj() {
		return gxSj;
	}
	public void setGxSj(Date gxSj) {
		this.gxSj = gxSj;
	}
}

Commonfile：

package com.javasgj.springboot.mybatisplus.domain;

import com.baomidou.mybatisplus.annotation.TableName;

@TableName("t_c_file")
public class Commonfile extends BaseEntity {
	
	// 以下为实体类对应表的所有字段
	private String name;
	private Long size;
	private String path;
	private String type;
	private String ywId;
	
	// 额外辅助字段
	
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Long getSize() {
		return size;
	}
	public void setSize(Long size) {
		this.size = size;
	}
	public String getPath() {
		return path;
	}
	public void setPath(String path) {
		this.path = path;
	}
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getYwId() {
		return ywId;
	}
	public void setYwId(String ywId) {
		this.ywId = ywId;
	}
}

2、创建mapper
CommonfileMapper：

package com.javasgj.springboot.mybatisplus.dao;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.javasgj.springboot.mybatisplus.domain.Commonfile;

public interface CommonfileMapper extends BaseMapper<Commonfile> {
	
	public void updateAllColumnById(Commonfile commonfile);
}

src/main/resources创建xml配置sql
mybatis/common/CommonfilePlusMapper.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.javasgj.springboot.mybatisplus.dao.CommonfileMapper">
 	
    <update id="updateAllColumnById" parameterType="Commonfile">
        update t_c_file
        <trim prefix="set" suffixOverrides=",">
            <if test="name != null and name != ''">
                name = #{name},
            </if>
            <if test="name == null or name == ''">
                name = null,
            </if>
            <if test="size != null and size != ''">
                size = #{size},
            </if>
            <if test="size == null or size == ''">
                size = null,
            </if>
            <if test="path != null and path != ''">
                path = #{path},
            </if>
            <if test="path == null or path == ''">
                path = null,
            </if>
            <if test="type != null and type != ''">
                type = #{type},
            </if>
            <if test="type == null or type == ''">
                type = null,
            </if>
            <if test="ywId != null and ywId != ''">
                yw_id = #{ywId},
            </if>
            <if test="ywId == null or ywId == ''">
                yw_id = null,
            </if>
        </trim>
        where id = #{id}
    </update>
</mapper>

3、创建service
CommonfileService：

package com.javasgj.springboot.mybatisplus.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.javasgj.springboot.mybatisplus.domain.Commonfile;

public interface CommonfileService extends IService<Commonfile> {

	public void updateAllColumnById(Commonfile commonfile);
}

CommonfileServiceImpl：

package com.javasgj.springboot.mybatisplus.service;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.javasgj.springboot.mybatisplus.dao.CommonfileMapper;
import com.javasgj.springboot.mybatisplus.domain.Commonfile;

@Service
public class CommonfileServiceImpl extends ServiceImpl<CommonfileMapper, Commonfile> implements CommonfileService {

	@Override
	@Transactional
	public void updateAllColumnById(Commonfile commonfile) {
		
		this.baseMapper.updateAllColumnById(commonfile);
	}
}

4、创建controller
CommonfileController：

package com.javasgj.springboot.mybatisplus.controller;

import java.util.Arrays;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.javasgj.springboot.mybatisplus.domain.Commonfile;
import com.javasgj.springboot.mybatisplus.service.CommonfileService;
import com.javasgj.springboot.mybatisplus.utils.StringUtil;

/**
 * 公共附件管理模块
 */
@RestController
@RequestMapping("/commonfile")
public class CommonfileController {
	
	@Autowired
	private CommonfileService commonfileService;
	
	@RequestMapping(value="findById", method=RequestMethod.GET)
	public Commonfile findById(String id, HttpServletRequest request, HttpServletResponse response) {
		
		return commonfileService.getById(id);
	}

	@RequestMapping(value="findByPage", method=RequestMethod.POST)
	public IPage<Commonfile> findByPage(@RequestBody Commonfile commonfile, HttpServletRequest request, HttpServletResponse response) {
		
		Page<Commonfile> page = new Page<Commonfile>();
		page.setCurrent(commonfile.getPageIndex());
		page.setSize(commonfile.getPageSize());
		
		QueryWrapper<Commonfile> queryWrapper = new QueryWrapper<Commonfile>();
		if(!StringUtil.isEmpty(commonfile.getName())) {
			queryWrapper.like("name", commonfile.getName());
		}
		return commonfileService.page(page, queryWrapper);
	}
	
	@RequestMapping(value="findAll", method=RequestMethod.POST)
	public List<Commonfile> findAll(@RequestBody Commonfile commonfile, HttpServletRequest request, HttpServletResponse response) {
		
		QueryWrapper<Commonfile> queryWrapper = new QueryWrapper<Commonfile>();
		if(!StringUtil.isEmpty(commonfile.getName())) {
			queryWrapper.like("name", commonfile.getName());
		}
		return commonfileService.list(queryWrapper);
	}

	@RequestMapping(value="save", method=RequestMethod.POST)
	public void save(@RequestBody Commonfile commonfile, HttpServletRequest request, HttpServletResponse response) {
		
		commonfileService.save(commonfile);
	}

	@RequestMapping(value="update", method=RequestMethod.POST)
	public void update(@RequestBody Commonfile commonfile, HttpServletRequest request, HttpServletResponse response) {
		
		commonfileService.updateAllColumnById(commonfile);
	}
	
	@RequestMapping(value="deleteById", method=RequestMethod.POST)
	public void deleteById(@RequestBody Commonfile commonfile, HttpServletRequest request, HttpServletResponse response) {
		
		commonfileService.removeByIds(Arrays.asList(commonfile.getId().split(",")));
	}	
}

5、应用启动类

package com.javasgj.springboot.mybatisplus;

import java.util.ArrayList;
import java.util.List;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

/**
 * spring boot应用启动类
 * @MapperScan：mybatis Mapper接口扫描，如果不加此注解，那么必须在Mapper接口上加@Mapper
 */
@SpringBootApplication
@EnableTransactionManagement
@MapperScan("com.javasgj.springboot.mybatisplus.**.dao")
public class Application {
	
	public static void main(String[] args) {
		
		SpringApplication.run(Application.class, args);
	}
	
	/**
	 * fastjson替换默认的jackjson(springmvc)
	 * @return
	 */
	@Bean
    public HttpMessageConverters fastJsonHttpMessageConverters() {
		
        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.WriteMapNullValue, 
        									SerializerFeature.WriteNullListAsEmpty);
        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);

        // 处理中文乱码问题
        List<MediaType> fastMediaTypes = new ArrayList<>();
        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes);
        
        HttpMessageConverter<?> converter = fastJsonHttpMessageConverter;
        return new HttpMessageConverters(converter);
    }
}

6、测试，使用postman
findById：
get方式：http://127.0.0.1:8080/springboot/commonfile/findById?id=6ff2a63a45da4f27bdd8f292c3b24c27

findByPage：
post方式：http://127.0.0.1:8080/springboot/commonfile/findByPage
Headers头添加：Content-Type：application/json
Body中选择raw：{“pageIndex”: “1”, “pageSize”: “2”}

findAll：
post方式：http://127.0.0.1:8080/springboot/commonfile/findAll
Headers头添加：Content-Type：application/json
Body中选择raw：{“name”: “86”}

save：
post方式：http://127.0.0.1:8080/springboot/commonfile/save
Headers头添加：Content-Type：application/json
Body中选择raw：{“name”: “86”}

update：
post方式：http://127.0.0.1:8080/springboot/commonfile/update
Headers头添加：Content-Type：application/json
Body中选择raw：{“id”:“0e821cf5423a4877899a1649a6de650e”, “name”: “86111”}

deleteById：
post方式：http://127.0.0.1:8080/springboot/commonfile/deleteById
Headers头添加：Content-Type：application/json
Body中选择raw：{“id”:“0e821cf5423a4877899a1649a6de650e,57bb99851d9947208569540d28c1c453”}

OK，整合完了！

标签：mybatisplus,SpringBoot,秘籍,import,commonfile,com,public,String
来源： https://blog.csdn.net/ETTTTTSS/article/details/96337563

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SpringBoot秘籍七、集成mybatisplus实战

在SpringBoot秘籍六基础上做如下修改：

好了，开始实战