get請求報錯Error in v-on handler (Promise/async): "Error: Request failed with status code 400"

可能是參數錯誤
get請求在路徑拼接參數分兩種類型

一種是“/”類型拼接

            const {data: res} = await this.$http.get("/packagemanager/package/selecttwo/" + JSON.parse(window.sessionStorage.getItem("user")).uphone)

後端接受

 @RequestMapping(value = "/branch/{badress}", method = RequestMethod.GET)
    public Result findBranchByAddress2(@PathVariable("badress") String baddress) {

第二種是“？”後拼接

前端

const {data: res} = await this.$http.get("/backstage/branch/getlatitude", {params:item})

後端接受

 //查詢某個地址的經緯度
    @RequestMapping(value = "/branch/getlatitude", method = RequestMethod.GET)
    public Result getlatitude(@RequestParam(value = "baddress") String baddress,
                              @RequestParam(value = "bdetialaddress")String bdetialadress) {