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Getting data from php file in my Android java class using bufferreader

I am getting data from php file in android java class using
BufferedReader reader = new BufferedReader(new
InputStreamReader(con.getInputStream()));.
This code is in my php file is
echo "abc";
echo "xyz";
This is the code of my java file.
BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
String line = null;
Complete_line = null;// Read Server Response
while ((line = reader.readLine()) != null) {
System.out.println(line);
break;
}
But when I read from Buffer reader it will read a whole one line, or it will print "line" string as "abcxyz". But I want them as two lines as they are two different lines in the PHP file.

try this,
BufferedReader reader = null;
StringBuffer response = new StringBuffer();
try {
reader = new BufferedReader(new InputStreamReader(in));
String line = "";
while ((line = reader.readLine()) != null) {
response.append(line+"\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

In PHP, unless you seperate the 2 lines a a newline character \n, the two echos are the same. To seperate echos into different lines, you need to end the strings with \n, like this:
echo "abc\n";
echo "xyz\n";

Read/Write to command-line .exe Java

I'm trying to launch a process in java, read the output, write to the program, then read what it responds with. From all the other answers on SO, this is what I have come up with:
class Main
{
public static void main(String[] args) {
String line = "";
try {
ProcessBuilder pb = new ProcessBuilder("C:\\myProgram.exe");
Process p = pb.start();
BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
BufferedWriter output = new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
while ((line = input.readLine()) != null) {
System.out.println(line);
}
output.write("foo");
output.newLine();
output.flush();
while ((line = input.readLine()) != null) {
System.out.println(line);
}
p.destroy();
}
catch (IOException e){
}
}
}
It launches the program, and gives me the output just as expected.
When i write foo, I expect the program to come back with another response, but it never does.
What am I doing wrong?

Java Process can't get ErrorStream message

everyone, I have a process that needs to get standard output and log/error/exception output from the subprocess. The standard output is fine, but I can't get ErrorStream, therefore the program is stuck there because of that. Here is my simple code. There is nothing magic, but why can't I get the error stream here? Thanks for looking at it.
BufferedReader standard =
new BufferedReader(new InputStreamReader(process.getInputStream()));
BufferedReader error =
new BufferedReader(new InputStreamReader(process.getErrorStream()));
String line = null;
while ((line = standard.readLine()) != null) {
System.out.println(line);
}
while ((line = error.readLine()) != null) {
System.out.println(line);
}
Now, as suggested, i used two threads to process the output and error streams, but still had the same problem, as follows. Can anybody give me some insights? Thanks.
ProcessBuilder pb = new ProcessBuilder(listArgs);
pb.redirectErrorStream();
Process process = pb.start();
StreamThread output = new StreamThread(process.getInputStream());
StreamThread error = new StreamThread(process.getErrorStream());
output.start();
error.start();
while (true) {
try {
output.join();
break;
}
catch (InterruptedException ie) {
ie.printStackTrace();
}
}
The definition of the StreamThread:
public static class StreamThread extends Thread{
private InputStream input = null;
public StreamThread(InputStream in){
input = in;
}
String line = null;
public void start(){
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
try{
while( (line=reader.readLine()) != null ){
System.out.println(line);
}
reader.close();
}catch (IOException e){
e.printStackTrace();
}
}
}

Look at your loops:
while ((line = standard.readLine()) != null) {
System.out.println(line);
}
while ((line = error.readLine()) != null) {
System.out.println(line);
}
You're going to keep reading from the output stream until it's finished - which is likely to be when the process terminates. Only then do you start reading the error stream.
You should probably put at least one of these into a different thread, so you can read from both streams at the same time.

Print Runtime.getRuntime().exec() output live

I'm writing a Java program that is used to call a PHP script in set intervals. The PHP script outputs a lot of data, and it is the client's requirement that the Java program displays all the PHP script's output while the script runs.
The method I'm using is:
Runtime.getRuntime().exec(new String[]{"php", "file.php"});
Then using an InputStreamReader to grab output, primarily using examples from here. The problem I'm having is that the stream reader only outputs the data once the PHP script exits (which makes sense considering how the output is looped through).
How would I go about printing the script's output live while the script is running?

I did this by reading the output from a separate thread:
Process p = Runtime.getRuntime().exec(commands);
final InputStream stream = p.getInputStream();
new Thread(new Runnable() {
public void run() {
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(stream));
String line = null;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
} catch (Exception e) {
// TODO
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
// ignore
}
}
}
}
}).start();

For now I decided to go with Andrew Thompson's suggestion:
ProcessBuilder builder = new ProcessBuilder(command);
builder.redirectErrorStream(true);
Process process = builder.start();
InputStreamReader istream = new InputStreamReader(process.getInputStream());
BufferedReader br = new BufferedReader(istream);
String line;
while ((line = br.readLine()) != null){
System.out.println(line);
}
process.waitFor();
This is still not what I'm looking for though, so for now I'm leaving the question unanswered.

Hibernate-SQLite Dump and Import via Java

How can I make use of Hibernate to perform a backup on my sqlite database? The output should ideally be in the form of an SQL script, similar to the .dump sqlite utility.
Also, to perform a restore of the sql script programmatically as well.

I have found an alternative to do this, and it is by invoking the sqlite3 command line shell via Java. Here's my sample solution
public class Test {
public static void main(String args[]) {
try {
String line;
Process p = Runtime.getRuntime().exec("cmd /c start /b sqlite3 db.sqlite .dump > dump.txt");
BufferedReader bri = new BufferedReader
(new InputStreamReader(p.getInputStream()));
BufferedReader bre = new BufferedReader
(new InputStreamReader(p.getErrorStream()));
while ((line = bri.readLine()) != null) {
System.out.println(line);
}
bri.close();
while ((line = bre.readLine()) != null) {
System.out.println(line);
}
bre.close();
p.waitFor();
System.out.println("Done.");
}
catch (Exception err) {
err.printStackTrace();
}
}
}

To my knowledge there is no mechanism in Java to do an SQL dump. But you could create a program to do it quite easily by:
Iterating through a list of your entities - built up using reflection perhaps.
Get you list of column names using JDBC direct (cant really do it with hibernate).
Then creating a select query you pass the Entity name into as a parameter.
Iterate over the result set and push the data via a formatted string to a file.
You can of course add in a DROP IF EXISTS before each CREATE if required.

For Unix Flavor cmd not working so used this for ubuntu.
try
{
String line;
Runtime rt = Runtime.getRuntime();
Process p = rt.exec(new String[]{"/bin/sh", "-c", "sqlite3 /home/ubuntu/test.sqlite .dump > /home/ubuntu/output.sql"});
BufferedReader bri = new BufferedReader(new InputStreamReader(p.getInputStream()));
BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));
while ((line = bri.readLine()) != null) {
System.out.println(line);
}
bri.close();
while ((line = bre.readLine()) != null) {
System.out.println(line);
}
bre.close();
p.waitFor();
System.out.println("Done.");
} catch (Exception err) {
err.printStackTrace();
}