@RequestParam的作用相当于 request.getParameter(“参数名”)
@RequestMapping(value = "/modifyNumber", method = RequestMethod.PUT)
void modifyNumber(@RequestParam("id") Long id,@RequestParam("number") Integer number) {
roleService.modifyNumber(id, number);
}
@PathVariable的作用是可以识别url中的参数
@RequestMapping(value = "/get/{id}", method = RequestMethod.GET)
Result get(@PathVariable("id") Long id) {
RoleDto roleDto = roleClient.get(id);
RoleResult roleResult = passportAssemble.buildParam(roleDto);
return Result.OK(roleResult);
}
mapper类中不加@param注解可能导致报错:Parameter 'number' not found. Available parameters are [0, 1, param1, param2]
void modifyNumber(@Param("id")Long id, @Param("number")Integer number);
也可以通过参数传递的顺序解决:
<update id="modifyNumber" >
UPDATE role SET
number=#{1}
WHERE
ID = #{0}
</update>