MyBatisPlus---delete删除操作的三种方法

一、根据id删除

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@Test public void deleteById() {     int rows = userMapper.deleteById(1351456313578713090L);     System.out.println("删除条数：" + rows); }   @Test public void deleteByBatchIds() {     int rows = userMapper.deleteBatchIds(Arrays.asList(1094592041087729666L, 1351456313578713090L));     System.out.println("删除条数：" + rows); }

二、其他普通删除

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@Test public void deleteByMap() {     Map<String, Object> map = new HashMap<>();     map.put("name", "张三");     map.put("age", 25);     int rows = userMapper.deleteByMap(map);     System.out.println("删除条数：" + rows); }

三、以条件构造器为参数删除

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@Test public void deleteByWrapper(){     QueryWrapper wrapper = new QueryWrapper();     wrapper.eq("name","张三");     wrapper.eq("age",25);     int rows = userMapper.delete(wrapper);     System.out.println("删除条数：" + rows); }   @Test public void deleteByLambda(){     LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper();     wrapper.eq(User::getName,"张三").eq(User::getAge,25);     int rows = userMapper.delete(wrapper);     System.out.println("删除条数：" + rows); }