android中的inputstream

我在活动A中使用了两个输出流和两个输入流。OnclickListener中为按钮“b1”使用了一组输入和输出流。onclickListener中的另一个设置用于按钮“b2”。当我在ClickListener上使用按钮“b2”内的输入流时，我得到了

java.io.StreamCorruptedException

。当我关闭按钮“b1”中的inputStream时会发生这种情况

但当我不关闭按钮“b1”中的inputstream时，即使我每次创建新的inputstream对象，它在b2中也可以正常工作。这是什么原因？

这是我使用的代码

    b1.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {

                     try
                      {

                         URL url = new URL("http://172.16.32.160:8080/xyz/abc");
                          URLConnection connection = url.openConnection();
                          connection.setDoOutput(true);
                          ObjectOutputStream out=new ObjectOutputStream(connection.getOutputStream());
                          String s="r1"+","+receive_name;
                         Toast.makeText(getApplicationContext(), "sent", Toast.LENGTH_LONG).show();
                         out.writeObject(s);
                         out.flush();
                         out.close();


                          ObjectInputStream in = new ObjectInputStream(connection.getInputStream());

                          String output=(String)in.readObject();
}
});

    //Code for b2 onclick Listener
        b2.setOnClickListener(new OnClickListener() {

                    public void onClick(View v) {
                    try {
                          String receive_name="abcd";
                          long value=6127261;
                          String pass=Long.toString(value);
                           String send="r2"+","+receive_name+","+pass;

                   URL url = new URL("http://172.16.32.160:8080/xyz/abc");
                      URLConnection connection = url.openConnection();
                      connection.setDoOutput(true);
                      ObjectOutputStream out=new ObjectOutputStream(connection.getOutputStream());
                     out.writeObject(send);
                     out.flush();
                     out.close();




    //**This Input Stream gives java.io.StreamCorruptedException **
    //when the Inputstream of previous(b1's) OnClickListener is closed
    //Works when previous Input Stream is not closed
                    ObjectInputStream in = new ObjectInputStream(connection.getInputStream());
                    Toast.makeText(getApplicationContext(), "one", Toast.LENGTH_LONG).show();
                    String output=(String)in.readObject();

}
});

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请查看代码中的注释。

请发布相关代码。@ThinkStip:我已经输入了代码。见编辑后的问题