mybatis多参数传入的动态sql

mybatis参数传入，不用map与实体类封装，直接传入

1.service层

@Transactional(propagation = Propagation.REQUIRED,rollbackFor = Exception.class)
public int update(String newsId, int type) {
return sysNewsRedoMapper.update(newsId,type);
}

2.mapper文件

<update id="update">
update t_sys_news SET
<if test="param2 == 0">
is_delete = 1
</if>
<if test="param2 == 1">
state = 2
</if>
where news_id = #{0}
</update>

3.controller层
@ApiOperation("删除与下架接口")
@PostMapping("/update")
@ApiImplicitParams({
@ApiImplicitParam(paramType = "query", name = "newsId", dataType = "String", required = true, value = "新闻媒体主键"),
@ApiImplicitParam(paramType = "query", name = "type", dataType = "int", required = true, value = "操作类型 0删除 1下架")
})
public Map update(@RequestParam(value = "newsId") String newsId,
@RequestParam(value = "type") int type){

注：
#{0}表示第一位参数，#{2}表示第二位参数，以此类推

<if test="">判断中 param1代表第一位参数，param2代表第二位参数，以此类推