mybatis乐观锁批量更新和单个更新

拦截器

package com.esolution.xreport.config;


import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MybatisPlusLockConfig {
	/**
	 * 乐观锁拦截器
	 */
	@Bean
	public MybatisPlusInterceptor mybatisPlusInterceptor() {
		MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
		OptimisticLockerInnerInterceptor optimisticLockInnerInterceptor = new OptimisticLockerInnerInterceptor();
		interceptor.addInnerInterceptor(optimisticLockInnerInterceptor);
		return interceptor;
	}
}

　　实体类

package com.esolution.xreport.entity;

import com.baomidou.mybatisplus.annotation.*;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.springblade.core.mp.base.BaseEntity;

/**
 *测试乐观锁
 *
 * @author
 * @since
 */
@Data
@TableName("biz_test_mybatisplus")
@EqualsAndHashCode(callSuper = true)
public class TestMybatisplus extends BaseEntity {
	private static final long serialVersionUID = 1L;
	@TableId(type=IdType.AUTO)
	private Long id;
	@ApiModelProperty(value = "版本号")
	@Version
	private Integer version;
	@ApiModelProperty(value = "用户名")
	private String userName;
	@ApiModelProperty(value = "用户号")
	private String userCode;
	@ApiModelProperty(value = "地址")
	private String address;
	@ApiModelProperty(value = "部门")
	private Integer createDept;


}

　　业务类

package com.esolution.xreport.service.impl;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.esolution.xreport.entity.TestMybatisplus;
import com.esolution.xreport.mapper.*;
import com.esolution.xreport.service.ITestMybatisplusService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springblade.core.mp.base.BaseServiceImpl;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
/**
 *测试
 * @author
 * @date
 */
@Service
@RequiredArgsConstructor
@Slf4j
public class TestMybatisplusImpl extends BaseServiceImpl<TestMybatisplusMapper, TestMybatisplus> implements ITestMybatisplusService {

	@Override
	public void testMyBatisPlusAdd() {
		List<TestMybatisplus> list = new ArrayList<>();
		for(int i=0;i<5;i++){
			TestMybatisplus bean = new TestMybatisplus();
			bean.setAddress("北京");
			bean.setUserName("张三"+i);
			bean.setUserCode("mm"+i);
			bean.setVersion(1);
			list.add(bean);
		}
		saveBatch(list);
	}
       //批量更新

	@Override
	public void testMyBatisPlusUpdate() {
		List<TestMybatisplus> list = list();
		log.info("list==="+list);
		list.forEach(e ->{
			Random random = new Random();
			int randomNumber = random.nextInt(10) + 1;
			String name= e.getUserName()+randomNumber;
			e.setUserName(name);
		});
		//this.updateBatchById(list);
		System.out.println("list.get(0)==="+list.get(1));
		this.updateBatchById(list);
	}
       //单个更新
	@Override
	public void testMyBatisPlusUpdateOne() {
		List<TestMybatisplus> list = list();
		log.info("list==="+list);
		list.forEach(e ->{
			Random random = new Random();
			int randomNumber = random.nextInt(10) + 1;
			String name= e.getUserName()+randomNumber;
			e.setUserName(name);
		});
		//this.updateBatchById(list);
		System.out.println("list.get(0)==="+list.get(1));
		this.updateById(list.get(0));
	}

	@Override
	public void testUpdate() {
		List<TestMybatisplus> list = list();
		TestMybatisplus ben = list.get(0);
		LambdaUpdateWrapper<TestMybatisplus> wrapper = new LambdaUpdateWrapper<>();
		Random random = new Random();
		int randomNumber = random.nextInt(10) + 1;
		String name= ben.getUserName()+randomNumber;

		wrapper.eq(TestMybatisplus::getUserCode,"mm0");
		wrapper.set(TestMybatisplus::getUserName,name);
		wrapper.eq(TestMybatisplus::getVersion,list.get(0).getVersion());
		update(wrapper);
	}
}