Mybatisplus-plus 1.1.0 发布，根据多个字段联合主键增删改查
原生mybatisplus只支持一个主键，mpp支持多个字段联合主键增删改查，mapper需要继承MppBaseMapper实体类中联合主键的字段，需要用@MppMultiId注解修饰 在实例类成员变量上使用@MppMultiId表明联合主键 @TableName("test07") public class Test07Entity { @MppMultiId @TableField(value = "k1") private Integer k1; @MppMultiId @TableField(value = "k2") private String k2; @TableField(value = "col1") private String col1; @TableField(value = "col2") private String col2; mapper需要继承MppBaseMapper @Mapper public interface Test07Mapper extends MppBaseMapper<Test07Entity> { } 根据多主键增删改查 public void testMultiId(){ //id Test07Entity idEntity=new Test07Entity(); idEntity.setK1(1); idEntity.setK2("111"); //del test07Mapper.deleteByMultiId(idEntity); //add test07Mapper.insert(idEntity); //query Test07Entity retEntity=test07Mapper.selectByMultiId(idEntity); retEntity.setCol1("xxxx"); //update test07Mapper.updateByMultiId(retEntity); }
