Reading an inputStream all at once

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Read/convert an InputStream to a String 56 answers

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What about Apache Commons IOUtils.readLines()?

Get the contents of an InputStream as a list of Strings, one entry per line, using the default character encoding of the platform.

Or if you just want a single string use IOUtiles.toString().

Get the contents of an InputStream as a String using the default character encoding of the platform.

[update] Per the comment about this being avaible on J2ME, I admit I missed that condition however, the IOUtils source is pretty light on dependencies, so perhaps the code could be used directly.

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If I understand you correctly, You can use a simple loop:

StringBuffer sb = new StringBuffer();
String s;
while ((s = input.readLine()) != null)
    sb.append(s);

Add a counter in your loop, and if your counter = 0, return null:

int counter = 0;
while ((c = read()) > 0 && c != 'n' && c != 'r' && c != -1) {
    sb.append((char)c);
    counter++;
}
if (counter == 0)
    return null;

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专门针对Web服务器！

String temp;
StringBuffer sb = new StringBuffer();
while (!(temp = input.readLine()).equals("")){
    sb.append(line);
}

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