Thanks for reply...
STEP 1
String clientId = "xxxxxxxxxxx";
String callback = "http://"; + request.getServerName() + ":" +
request.getServerPort() + request.getContextPath() + "/myUrl.jsp";
String authUrl = "https://accounts.google.com/o/oauth2/auth?client_id="; +
clientId + "&redirect_uri=" + callback +
"&scope=https://www.google.com/m8/feeds/&response_type=code";;
response.sendRedirect(authUrl);
STEP 2 (myUrl.jsp)
String code = request.getParameter("code");
String clientSecret = "yyyyyyyyyyyyyyyyyyyyy";
String newUrl = "https://accounts.google.com/o/oauth2/token";;
String clientId = "xxxxxxxxxxxxxxxxxxxxxxxxx";
String callback = "http://"; + request.getServerName() + ":" +
request.getServerPort() + request.getContextPath() + "/protectedUrl2.jsp";
String requestUrl = "https://accounts.google.com/o/oauth2/auth?client_id=";
+ clientId
+ "&redirect_uri="
+ callback
+ "&scope=https://www.google.com/m8/feeds/&response_type=";;
String tokenUrl = new String( "https://accounts.google.com/o/oauth2/token";);
StringBuffer params = new StringBuffer("");
params.append("code=" + code);
params.append("&client_id=" + clientId);
params.append("&client_secret=" + clientSecret);
params.append("&redirect_uri=" + callback);
params.append("&grant_type=authorization_code");
try
{
// Send data
URL url = new URL(tokenUrl.toString());
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new
OutputStreamWriter(conn.getOutputStream());
wr.write(params.toString());
wr.flush();
// Get the response
BufferedReader rd = new BufferedReader(new
InputStreamReader(conn.getInputStream()));
String line;
while ((line = rd.readLine()) != null)
{
System.out.println("---" + line);
}
wr.close();
rd.close();
}
catch (Exception e)
{
e.printStackTrace();
}
When myUrl.jsp start, I get this error:
java.io.IOException: Server returned HTTP response code: 400 for URL:
https://accounts.google.com/o/oauth2/token
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1313)
at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:234)
at
org.apache.jsp.protectedUrl_jsp._jspService(protectedUrl_jsp.java:108)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Help me please!
Thanks
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