I want to access the contents of the HttpServlet Request.For that i am assinging the HttpServlet Request object into an arraylist. Here is the web service code that i have written,Please find my code below:
@Path("/login")
public class Login
{
DBConnection dBConnection = new DBConnection();
static long logintimemilli;
@GET
@Produces(MediaType.APPLICATION_JSON)
public String checkLogin(@QueryParam("username")String username,@QueryParam("password")String password,@QueryParam("clientid")String clientno,@QueryParam("callback")String callback,@Context HttpHeaders headers,@Context HttpServletRequest request)
{
JSONObject loginresult = new JSONObject();
try
{
String query = QuerySelector.getQuery("user.checklogin");
loginresult = dBConnection.queryForJSONObject(query, username,password,clientno);
ArrayList<String> user= new ArrayList <String>();
HttpSession session = request.getSession();
user = (ArrayList<String>) (List) session.getAttribute("USER");
insertauditList(user,ip);
}
catch(Exception ex)
{
ex.printStackTrace();
}
return callback + "(" + loginresult.toString() + ")" ;
}
public void insertauditList(ArrayList<String> user,String ip)
{
try
{
for (String s : user) { System.out.printl(s);
}
//(for the above for loop i am getting a runtime error)
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
}
Here is the exception i am getting after running the program:
29-Sep-2015 12:42:18.597 INFO [http-nio-8084-exec-16] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/MobileService]
java.lang.IllegalStateException: getAttribute: Session already invalidated
at org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:1204)
at org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:108)
at com.zimmer.mobileservice.resources.Login.checkLogin(Login.java:62)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:708)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1085)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1556)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1513)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
According to question title you want to copy HttpServletRequest contents to ArrayList but in your code you are trying to get HttpSession and get an attribute from HttpSession object. In the below code you can copy request parameter maps to an ArrayList.
private void showRequestParamaters(HttpServletRequest req) {
Map<String, String[]> parameterMap = req.getParameterMap();
List<String> requestParams = new ArrayList<>();
for (Entry<String, String[]> entry : parameterMap.entrySet()) {
String[] paramValues = entry.getValue();
if (paramValues != null) {
for (String p : paramValues) {
requestParams.add(p);
}
}
}
for (String s : requestParams) {
System.out.println(s);
}
}
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