如何在服务器端获取HTTP POST请求正文作为Java字符串? [英] How to get an HTTP POST request body as a Java String at the server side?

问题描述

HttpExchange对象的getRequestBody方法返回一个InputStream.正确阅读正文"还有很多工作.是Java库+对象+方法又向前迈进了一步，并将主体(在服务器端)返回为现成的Java String吗?

The getRequestBody method of the HttpExchange object returns an InputStream. There is still much work for correctly read the "Body". Is it a Java library + object + method that goes one more step ahead and returns the body (at the server side) as a ready-to-use Java String?

推荐答案

InputStreamReader isr =  new InputStreamReader(t.getRequestBody(),"utf-8");
BufferedReader br = new BufferedReader(isr);

// From now on, the right way of moving from bytes to utf-8 characters:

int b;
StringBuilder buf = new StringBuilder(512);
while ((b = br.read()) != -1) {
    buf.append((char) b);
}

br.close();
isr.close();

// The resulting string is: buf.toString()
// and the number of BYTES (not utf-8 characters) from the body is: buf.length()

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