PHP传数据到Go，当数据量超出一定限制后，导致go无法接收到全部数据？

背景：本人PHPer，业务中用到了PHP导出Excel，但是当数据量过大时，导出缓慢。最近在学习go，所以想试验一下go中相同数据量的excel导出耗时与PHP相差多少。根据现在的业务情况，写出代码如下： ```php <?php ini_set('memory_limit','1024M'); ini_set('post_max_size','1024M'); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://127.0.0.1:12345/excel_export"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // POST数据 curl_setopt($ch, CURLOPT_POST, 1); $str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; for ($i=1;$i<=1000000;$i++){ $json[] = array( "age" => $i, "name" => substr($str, rand(0,26), rand(1,26)), "sex" => $i + 1*rand(1,10) ); } $params = array( "data" => json_encode($json), "file_path" => "http://localhost/test.xlsx", //模板文件地址 "export_filename" => "测试导出Excel.xlsx" //导出的Excel文件名 ); curl_setopt($ch, CURLOPT_POSTFIELDS, $params); $output = curl_exec($ch); var_dump($output); var_dump(curl_error($ch)); curl_close($ch); ?> ``` ```go package main import ( "bufio" "encoding/json" "fmt" "github.com/360EntSecGroup-Skylar/excelize" "io" "log" "net/http" "os" "path" "time" ) type stringSlice []string func main() { //1，监听请求 http.HandleFunc("/excel_export", excelExport) err := http.ListenAndServe("127.0.0.1:12345", nil) if err != nil { fmt.Println(err) return } } func excelExport(w http.ResponseWriter, req *http.Request) { start := time.Now() //方法1 //req.ParseForm() // //postData,ok := req.Form["data"] //fmt.Println(ok) // //filepath,ok := req.Form["file_path"] //fmt.Println(ok) // //exportFilename,ok := req.Form["export_filename"] //fmt.Println(ok) //方法2 //buf := new(bytes.Buffer) //io.Copy(buf, req.Body) //body := buf.String() // //fmt.Println(body) //方法3 postData := req.FormValue("data") filepath := req.FormValue("file_path") exportFilename := req.FormValue("export_filename") if postData == "" || filepath == "" { io.WriteString(w, "error") return } fileName := path.Base(filepath) //1，创建文件，如果文件创建失败，则返回 createTemplateFile(filepath) //2，根据传来的模板文件，获取到文件中的表头 title := getTitle(fileName) if len(title) < 1 { io.WriteString(w, "error1") return } //3，获取并解析待写入的数据 exportData := getDatas(req, postData) if len(exportData) < 1 { io.WriteString(w, "error2") return } //开始创建文件并写入数据 flag := createFile(title, exportData, exportFilename) if !flag { io.WriteString(w, "error3") return } end := time.Now() log.Println(end.Sub(start)) io.WriteString(w, "success") } //通过传来的文件地址，读取并在本地创建一个相同的模板文件 func createTemplateFile(filepath string) bool { res,err := http.Get(filepath) if err != nil { log.Println(err) return false } filename := path.Base(filepath) reader := bufio.NewReader(res.Body) file,err := os.Create(filename) if err != nil { log.Println(err) return false } defer file.Close() writer := bufio.NewWriter(file) _,err = io.Copy(writer, reader) if err != nil { log.Println(err) return false } return true } func createFile(title []stringSlice, exportData []map[string]interface{}, exportFilename string) bool { file := excelize.NewFile() streamWriter, err := file.NewStreamWriter("Sheet1") if err != nil { log.Println(err) return false; } //fmt.Println(title) var titleString []string //写 title for rowID := 0; rowID < len(title); rowID++ { row := make([]interface{}, len(title[rowID])) for colID := 0; colID < len(title[rowID]); colID++ { row[colID] = title[rowID][colID] if rowID == 1 { titleString = append(titleString, title[rowID][colID]) } } cell, _ := excelize.CoordinatesToCellName(1, rowID+1) if err := streamWriter.SetRow(cell, row); err != nil { return false } } //fmt.Println(titleString) titleLen := len(title) + 1 //写数据 for _,v := range exportData { row := make([]interface{}, 0) for i := 0; i < len(titleString); i++ { vv, ok := v[titleString[i]] if !ok { return false } row = append(row, vv) } //fmt.Println(row) cell, _ := excelize.CoordinatesToCellName(1, titleLen) if err := streamWriter.SetRow(cell, row); err != nil { return false } titleLen++ } if err := streamWriter.Flush(); err != nil { log.Println(err) return false } if err := file.SaveAs(exportFilename); err != nil { log.Println(err) return false } return true } //获取表格模板的表头 func getTitle(fileName string) []stringSlice { title := make([]stringSlice, 0) //2, excel 打开文件 xls, err := excelize.OpenFile(fileName) if err != nil { return title } rows, err := xls.GetRows("Sheet1") for _, row := range rows { slice := make([]string, 0) for _, colCell := range row { slice = append(slice, colCell) } title = append(title, slice) } return title } //解析待写入的数据 func getDatas(req *http.Request, postDatas string) []map[string]interface{} { var str []map[string]interface{} err := json.Unmarshal([]byte(postDatas), &str) if err != nil { return str } return str } ``` 在go中的 excelExport 方法里，方法1接收不到任何数据，方法2可以接收到全部数据，但是我不清除如何解析；方法3在PHP中生成数据再95万以内传过去时，可以正常接收到数据，但是超出95万就收不到了。请问各位大佬我这里是哪儿出了问题呢？如果使用方法2的话我该如何解析各部分数据呢？