How do I convert InputStream to String?
Category: java.io, viewed: 270755 time(s).
This example will show you how to convert an InputStream to String. In the code snippet below we read a data.txt file, could be from common folder or from inside a jar file.
package org.kodejava.example.io;
import java.io.InputStream;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class StreamToString {
public static void main(String[] args) throws Exception {
StreamToString sts = new StreamToString();
/*
* Get input stream of our data file. This file can be in the root of
* you application folder or inside a jar file if the program is packed
* as a jar.
*/
InputStream is = sts.getClass().getResourceAsStream("/data.txt");
/*
* Call the method to convert the stream to string
*/
System.out.println(sts.convertStreamToString(is));
}
public String convertStreamToString(InputStream is) throws IOException {
/*
* To convert the InputStream to String we use the BufferedReader.readLine()
* method. We iterate until the BufferedReader return null which means
* there's no more data to read. Each line will appended to a StringBuilder
* and returned as String.
*/
if (is != null) {
StringBuilder sb = new StringBuilder();
String line;
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
while ((line = reader.readLine()) != null) {
sb.append(line).append("\n");
}
} finally {
is.close();
}
return sb.toString();
} else {
return "";
}
}
}
