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我有一個操作類,其中有一個方法serverstate,我正在解析幾個服務器細節和weblogic命令以獲取weblogic服務器的當前狀態。下面的代碼給出了所需的輸出Eclipse的控制檯,而不是在圖形用戶界面可能有人請幫助這一點,我想顯示在我編寫的GUI(JSP)頁面使用會話的輸出。如何在java中使用會話顯示方法的輸出
public void serverstate(HttpServletRequest request,HttpServletResponse response) throws IOException, Exception
{
String appname;
BufferedReader dataIn = new BufferedReader(new InputStreamReader(System.in));
String selapp = " ";
System.out.println("enter appname:");
selapp = dataIn.readLine();
System.out.println("selected app is:" + selapp);
{
try
{
File apps = new File("/WEB-INF/appdetails.xml");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(apps);
doc.getDocumentElement().normalize();
System.out.println("server status of " + selapp);
NodeList nodes = doc.getElementsByTagName("app");
System.out.println("==========================");
for (int i = 0; i < nodes.getLength(); i++)
{
Node node = nodes.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE);
{
Element element = (Element) node;
appname = getValue("name", element);
System.out.println(appname);
String user = getValue("uname", element);
System.out.println(user);
String server = getValue("server", element);
System.out.println(server);
String command = getValue("cmd", element);
System.out.println(command);
String passwd = getValue("passwd",element);
System.out.println(passwd);
String cmd= getValue("cmd",element);
System.out.println(cmd);
String port=getValue("port",element);
String clu=getValue("cluster",element);
String admin=getValue("admstate",element);
System.out.println(admin);
if (selapp.equalsIgnoreCase(appname))
{
try {
Runtime rt = Runtime.getRuntime();
//Process pr = rt.exec("cmd /c dir");
{
Process pr = rt.exec(""+ command +" && "+ admin +" && java weblogic.Admin -url "+ server +":"+ port +" -username "+ user +" -password "+ passwd +" CLUSTERSTATE -clusterName "+ clu +"");
BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String line=null;
while((line=input.readLine()) != null) {
System.out.println(line);
// int exitVal = pr.waitFor();
//System.out.println("Exited with error code "+exitVal);
}}}finally{
}}else {
System.out.println("no app selected");
}}}}catch(Exception e) {
System.out.println(e.toString());
e.printStackTrace();
}}
RequestDispatcher dispatcher = request.getRequestDispatcher("status.jsp");
dispatcher.forward(request,response);
}
這種方法讓我在Eclipse控制檯輸出和我想用sessions.please幫助
存儲您希望顯示爲請求屬性的必要數據。然後,在您的JSP中,使用表達式語言'$ {}'檢索它並使用像JSTL這樣的庫並相應地打印它。 – 2014-09-03 15:43:06
所以我會在我的java代碼中使用request.setattribute並在我的JSP中獲取屬性? – user1795999 2014-09-03 15:45:12
在servlet中,使用'request.setAttribute'。在視圖(JSP,Facelets)中,您絕不**使用scriptlet,而是使用表達式語言來爲您調用'request.getAttribute'。 – 2014-09-03 15:46:09