異常:getInputStream() has already been called for this request...
造成異常的代碼: 從請求中擷取body參數
BufferedReader reader = request.getReader();
while ((str = reader.readLine()) != null) {
requestJson += str;
}
reader.close();
原因: 1.重複調用 2.request.getReader擷取不到值
解決辦法:在擷取body 參數的同時,先判斷下請求資料流的長度,就完美解決啦
int len = request.getContentLength();
if (len != -1) {
BufferedReader reader = request.getReader();
while ((str = reader.readLine()) != null) {
requestJson += str;
}
reader.close();
}