(3)定义一个通用的批量插入接口 public interface InsertBatchSqlMapper<T> extends BaseMapper<T> {/** * 批量插入操作* @param list* @return*/Integer insertBatchSomeColumn(List<T> list);} (4)自己的mapper中集成一下通用的批量插入接口 public interface RuleTableMapper extends InsertBatchSqlMapper...
访问:http://localhost:8080/v1/device/list [Device(super=BaseEntity(createDate=Wed Sep 06 00:00:00 CST 2023, updateDate=Wed Sep 06 16:23:31 CST 2023, createUser=admin, updateUser=admin), id=21, deviceName=测试设备, deviceIdentification=设备标识码1, deviceId=77060c476f144ef39a38a335fdd...
修改后的代码 publicBoolean insertTasks(List<TaskInfoEntity>tasks, String agentId) { List<List<TaskInfoEntity>> batches =Lists.partition(tasks, BATCH_SIZE);for(List<TaskInfoEntity>batch : batches) { List<AgentTaskRelationEntity> entities =batch.stream() .map((Function<TaskInfoEntity, AgentTaskRel...
ycTestT.setNote("备注"+(i+"")); list.add(ycTestT); if( (i+1)%3000==0) { try{ //打开注释主动抛出异常,会进入单条插入的处理流程中 //throw new Exception("自定义异常信息"); ycTestTService.saveBatch(list); }catch(Exception e) { // 批量插入失败,改为单条插入 for(intj =0; j<l...
* 插入 */ INSERT_BATCH("insertBatch", "插入一条数据(选择字段插入)", "\nINSERT INTO %s %s VALUES %s\n"), ; private final String method; private final String desc; private final String sql; NoahSqlMethod(String method, String desc, String sql) { this.method = method...
import java.util.List; @SpringBootTest class Day5JobApplicationTests { @Resource private EmployeeMapper mapper; /*二、使用springboot整合mybatis-plus向上表中插入数据*/ @Test void save() { List<Employee> list = new ArrayList<>(); Employee e1 = new Employee(0,"伊万","ivan","1234.abcd",26...
-- -->} // 插入数据 User user = new User(); user.setName("Tom"); user.setAge(18); userMapper.insert(user); // 更新数据 user.setName("Jerry"); userMapper.updateById(user); // 删除数据 userMapper.deleteById(1L); // 查询数据 User result = userMapper.selectById(2L); List<...
* 原生批量插入 * @param list * @return */ int saveBatchByNative(@Param("list") List<UserInfo> list); } 代码语言:txt 复制 <insert id="saveBatchByNative" > INSERT INTO `t_user`(`name`,`age`,`descr`) VALUES <foreach collection="list" separator="," item="item"> ...
List<User> users = userMapper.selectList(null); System.out.println(users); }} 复制代码 run测试方法,查询所有数据,结果如下: 并且因为加入了mybatisplus提供的日志,所以控制台将底层的sql语句的执行过程也一并 打印了出来: 插入数据操作: //插入数据 ...
import java.util.List; public interface MyBaseMapper<T> extends BaseMapper<T> { // 批量插入 int insertBatchSomeColumn(@Param("list") List<T> batchList); // 批量更新 int updateBatch(@Param("list") List<T> list); } 然后,在业务Mapper对象上,将继承类从BaseMapper改为上面我们创建好的MyBaseMa...