1、nginx中新增配置：

    set $args "$args&参数名=参数值";

   示例： set $args "$args&demo1=cn_yaojin&demo2=123123&myip=$remote_addr";

location / {add_header Access-Control-Allow-Origin *;add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';       proxy_pass     http://127.0.0.1:10024;# 以下是在原来接口的基础上增加的固定参数set $args "$args&demo1=cn_yaojin&demo2=123123&myip=$remote_addr";proxy_set_header   X-Real-IP $remote_addr;proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;proxy_set_header    Host $host;}

2、java代码测试效果

    @ApiOperation(value = "test")@GetMapping(value = "test")public ResultMsg test() {this.request.getParameterMap().forEach((k, v) -> {for (String s : v) {System.out.println(k + "--" + s);}});return ResultMsg.builder();}

3、查看实际效果：