`invalid character '<' looking for beginning of value `
通过查看代码
`res, err := http.NewRequest("POST", url, body) `
res的内容为
`&{POST http://10.x.x.x/api/v1/xxx/ HTTP/1.1 1 1 map[] {0xc000c23230} 0x70f050 252 [] false 10.234.234.74 map[] map[] < nil > map[] < nil > < nil > < nil > < nil >}`
而`resp, err = http.DefaultClient.Do(res)`后
resp的内容为
`&{404 Not Found 404 HTTP/1.1 1 1 map[Connection:[keep-alive] Content-Length:[3650] Content-Type:[text/html] Date:[Tue, 14 May 2019 03:09:32 GMT] Etag:["54480a74-e42"] Server:[nginx/1.6.2]] 0xc000180bc0 3650 [] false false map[] 0xc000b59100 < nil >}`
可以看到错误应该是数据里的`< nil >`
但是实在不知道如何排查和问题定位，求各位帮忙。
