JAVA------12.app Test API interface

Importjava.awt.BorderLayout;Importjava.awt.FlowLayout;Importjava.awt.event.ActionEvent;ImportJava.awt.event.ActionListener;ImportJava.io.BufferedReader;Importjava.io.IOException;ImportJava.io.InputStreamReader;Importjava.net.MalformedURLException;ImportJava.net.URL;Importjava.net.URLConnection;ImportJavax.swing.JButton;ImportJavax.swing.JFrame;ImportJavax.swing.JLabel;ImportJavax.swing.JPanel;ImportJavax.swing.JScrollPane;ImportJavax.swing.JTextArea;ImportJavax.swing.JTextField;Importjavax.swing.ScrollPaneConstants;/*** Call URL parsing *@authorCaipei **/ Public classUrlutilextendsjframe{/**     *      */    Private Static Final LongSerialversionuid = 1L; JTextField TF=NULL; JButton Button=NULL, clear=NULL; JTextArea Ta=NULL;  PublicUrlutil () {tf=NewJTextField (28); Button=NewJButton ("Submit"); Clear=NewJButton ("Clear"); Ta=NewJTextArea ();        Init (); Button.addactionlistener (NewMyactionlistener ()); Clear.addactionlistener (NewActionListener () {@Override Public voidactionperformed (ActionEvent e) {//TODO auto-generated Method StubTf.settext (""); Ta.settext ("\t\t\tthis TextArea has been cleared! \n\n\t\t\tyou can begin your next test! ");            Tf.grabfocus ();    }        }); }     Public Static voidMain (String []args) {NewUrlutil (); } @SuppressWarnings ("Deprecation")     Public voidinit () { This. Settitle ("Json String Fetch tool");  This. SetSize (800,450);  This. setvisible (true);  This. Setdefaultcloseoperation (Exit_on_close);  This. Setlocationrelativeto (NULL); JScrollPane JS=NewJScrollPane (TA);        Js.setverticalscrollbarpolicy (scrollpaneconstants.vertical_scrollbar_as_needed); JPanel P=NewJPanel (); P.setlayout (NewFlowLayout ()); P.add (NewJLabel ("URL:"));        P.add (TF);        P.add (button);        P.add (Clear); Tf.setfocusable (true);        Button.setnextfocusablecomponent (TF);  This. Add (P,borderlayout.north);  This. Add (Js,borderlayout.center); }     Public Staticstring getjsonstring (string url) {string result=""; URLConnection Conn=NULL; BufferedReader Reader=NULL; Try{URL website=NewURL (Url.trim ()); Conn=(URLConnection) website.openconnection (); Reader=NewBufferedReader (NewInputStreamReader (Conn.getinputstream (), "Utf-8")); String Line=""; StringBuffer SB=NewStringBuffer ();  while((Line=reader.readline ())! =NULL) {sb.append (line); } result=sb.tostring (); }Catch(malformedurlexception urlexception) {result+=Urlexception.getmessage (); } Catch(IOException e) {//TODO auto-generated Catch blockresult+=E.getmessage ();        E.printstacktrace (); }Catch(Exception total) {result+=Total.getmessage ();        Total.printstacktrace (); }finally{            if(conn!=NULL) {Conn=NULL; }            if(reader!=NULL){                Try{reader.close (); } Catch(IOException e) {//TODO auto-generated Catch blockresult+=E.getmessage ();                E.printstacktrace (); } Reader=NULL; }        }        returnresult; }    classMyactionlistenerImplementsactionlistener{@Override Public voidactionperformed (ActionEvent e) {//TODO auto-generated Method StubString jsonstring=getjsonstring (Tf.gettext (). Trim (). toString ());        Ta.settext (jsonstring); }    }}

JAVA------12.app Test API interface