private long getParameter(String s, long l)
如果s!=null,返回它的long值(转换了一下);否则,返回lprivate String getParameter(String s, String s1)
如果s!=null,返回s,否则返回s1
如果s!=null,返回它的long值(转换了一下);否则,返回lprivate String getParameter(String s, String s1)
如果s!=null,返回s,否则返回s1
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String s1 = getParameter(s);
String s2 = getParameter(s);
这两句话分别调用哪个函数
这样写为什么不算错
难道参数可以不用写全吗?
将l和sl初始化为0和null。
所以只和s有关系
package weblogic.management.console.applets;import java.applet.Applet;
import java.applet.AppletContext;
import java.awt.*;
import java.io.IOException;
import java.io.PrintStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Vector;
public final class NavApplet extends Applet
implements Runnable
{ private static final long serialVersionUID = 0x7f3e0b5c079eddb3L;
private static final String DEFAULT_ENCODING = null;
private static boolean FORCE_DEBUG = false;
static boolean DEBUG = false;
private static final String DEBUGON = "debug";
private static final String ENCODING = "encoding";
private static final String TARGETFRAME = "target";
private static final String TREESERVLET = "TreeServlet";
private static final String EXPANDED = "ExpandedIcon";
private static final String COLLAPSED = "CollapsedIcon";
private static final String SESSIONID = "JSESSIONID";
private static final String PARAMS[][] = {
{
"TreeServlet", "String", "URL from which to populate the tree."
}, {
"ExpandedIcon", "String", "URL of the expander image."
}, {
"CollapsedIcon", "String", "URL of the collapser image."
}, {
"JSESSIONID", "String", "WebLogic Session ID."
}, {
"encoding", "String", "Character encoding to use for parsing nav page."
}, {
"debug", "String", "Send debugging output to console."
}
};
private static Vector mOpenIds = null;
private String mDefaultServer;
private String mTreeServlet;
private String mSessionId;
private String mEncodingType;
private ImageCatalog mImageCatalog;
private TreeNode mRoot;
private NavPanel mNavPanel;
private boolean mIsLoading; public NavApplet()
{
mIsLoading = false;
} private void checkParams()
{
String as[][] = getParameterInfo();
for(int i = 0; i < as.length; i++)
if(!as[i][0].equals("debug"))
if(getParameter(as[i][0]) == null)
debug("Expected parameter '" + as[i][0] + "' not specified in <APPLET> tag, " + "applet may not function correctly.");
else
debug("Read parameter '" + as[i][0] + "=" + getParameter(as[i][0]) + "'"); } private void debug(String s)
{
if(FORCE_DEBUG || DEBUG)
{
getAppletContext().showStatus(s);
System.out.println(s);
}
} private void fetchTree(String s, Vector vector)
throws MalformedURLException, IOException, Exception
{
if(!s.startsWith("http://") && !s.startsWith("https://"))
s = mDefaultServer + s;
debug("fetching tree from " + s);
mRoot = new TreeNode();
TreeParser treeparser = new TreeParser(mImageCatalog, mSessionId, vector, mEncodingType, getAppletContext());
treeparser.parse(s, mRoot);
debug("waiting for any new images...");
try
{
mImageCatalog.waitForAll(10000L);
}
catch(InterruptedException interruptedexception)
{
interruptedexception.printStackTrace();
}
mNavPanel.setRoot(mRoot);
debug("tree loaded.");
} private long getParameter(String s, long l)
{
String s1 = getParameter(s);
if(s1 != null)
try
{
return (long)Integer.parseInt(s1);
}
catch(Exception _ex) { }
return l;
} private String getParameter(String s, String s1)
{
String s2 = getParameter(s);
if(s2 != null)
return s2;
else
return s1;
} public String[][] getParameterInfo()
{
return PARAMS;
} public void init()
{
debug("Initializing Nav Applet...");
String s = getParameter("debug");
DEBUG = s != null && s.equalsIgnoreCase("true");
if(DEBUG)
checkParams();
URL url = getCodeBase();
mDefaultServer = url.getProtocol() + "://" + url.getHost() + ":" + url.getPort();
debug("Default Server is " + mDefaultServer);
String s1 = getParameter("ExpandedIcon");
String s2 = getParameter("CollapsedIcon");
String s3 = getParameter("target");
mSessionId = getParameter("JSESSIONID");
mImageCatalog = new ImageCatalog(this, mDefaultServer);
setLayout(new BorderLayout());
try
{
java.awt.Image image = mImageCatalog.fetch(s1);
java.awt.Image image1 = mImageCatalog.fetch(s2);
mNavPanel = new NavPanel();
mNavPanel.init(getAppletContext(), image, image1, mDefaultServer, s3);
add(mNavPanel, "Center");
mEncodingType = getParameter("encoding");
if(mEncodingType == null || mEncodingType.trim().length() == 0)
mEncodingType = null;
mTreeServlet = getParameter("TreeServlet");
if(mTreeServlet != null)
fetchTree(mTreeServlet, mOpenIds);
}
catch(Exception exception)
{
exception.printStackTrace();
}
setAppletFrameNameForWinRunner("WeblogicConsoleNavigationAppletFrame");
} public void reload()
{
if(!mIsLoading)
(new Thread(this)).start();
} public void run()
{
mIsLoading = true;
try
{
mOpenIds = new Vector();
mRoot.getOpenIds(mOpenIds);
fetchTree(mTreeServlet, mOpenIds);
}
catch(Exception exception)
{
exception.printStackTrace();
}
mIsLoading = false;
} private void setAppletFrameNameForWinRunner(String s)
{
try
{
Container container = null;
Container container1 = getParent();
debug("Attempting to reset parent applet frame's name to " + s);
int i = 0;
byte byte0 = 5;
while((container = container1.getParent()) != null && i < 5)
{
debug("Parent " + i++ + ": " + container1.toString());
container1 = container;
}
debug("Applet has " + i + " parent containers");
if(container1 != null)
{
debug("Current parent name is " + container1.getName());
container1.setName(s);
debug("New parent name is now " + container1.getName());
}
}
catch(Throwable throwable)
{
debug("Caught exception during debug: " + throwable);
}
} public void setSize(int i, int j)
{
super.setSize(i, j);
super.resize(i, j);
debug("setting size to " + i + " " + j);
invalidate();
validate();
doLayout();
repaint();
mNavPanel.forceRefresh();
} public void stop()
{
debug("stop() called, saving list of open nodes...");
mOpenIds = new Vector();
mRoot.getOpenIds(mOpenIds);
}}
一定有一个函数是这样定义的:
String getParameter(String s);
这样的函数定义啊。。
:(