Vue项目 axios post方法传参后台接收不到参数

- 日理万妓 2022-02-01 23:19 314阅读 0赞

## 我的qq  2038373094 ##

## ***问题描述*** ##

***1、页面上显示的参数是有值的***

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70][]

***2、但是后台接受的参数是null***

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70 1][]

## *** 解决方案*** ##

### ***1、**采用 let param = new URLSearchParams()* ###

*把参数封装在param里面*

*param.append('username', 'admin'),*

*param.append('password', 'admin') ,*

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70 2][]

sbt(){
            let param = new URLSearchParams()
             param.append('username', 'admin'),
             param.append('password', 'admin') , 
                      this.axios({
                                method: "post",
                                url: '/api/PsychoSys/regedit.action',
                                data: param
                            })
                            .then(function(res) {
                               console.log(res);
                           })
                            .catch(function(err) {
                               console.log(err);
                           });
    
          },

### ***2、**引入 qs ，这个库是 axios 里面包含的，不需要再下载了* ###

![20190510101658650.png][]

sbt(){
            let data = {
             'username': 'ddd',
             'password': '101010'
            }
             
                      this.axios({
                                method: "post",
                                url: '/api/PsychoSys/regedit.action',
                                data: Qs.stringify(data)
                            })
                            .then(function(res) {
                               console.log(res);
                           })
                            .catch(function(err) {
                               console.log(err);
                           });
    
          },

### ***以上两种是最简单的，最推荐使用的；*** ###

### ***我测试过，均成功*** ###

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70]: /images/20220202/8ca4255b46054074b96f12e429607412.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70 1]: /images/20220202/7f115e65298b436589834011cdb86487.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTkxNjM3_size_16_color_FFFFFF_t_70 2]: /images/20220202/1e64bb9862ab4c2485229aa6921021b7.png
[20190510101658650.png]: /images/20220202/7b812f4cd1c44cff82ca2f2c81fbac9a.png