刚刚使用Tomcat6做Web项目的时候,启动很快,大约2s就启动了,现在需要10s左右,是建立的Web项目中的哪些内容使得Tomcat启动逐渐变慢呢?(我说的启动变慢不是我机子的配置问题造成的,我的是酷睿2,1G)
请问哪位高手教我如何做下优化?-------------------------------------------------------Tomcat6启动输出的内容如下:usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { start | stop }
2009-9-22 10:10:22 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\Program Files\Genuitec\Common\binary\com.sun.java.jre.win32.x86_1.5.0.011\bin;C:\tomcat6\bin
2009-9-22 10:10:22 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8088
2009-9-22 10:10:22 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 702 ms
2009-9-22 10:10:22 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2009-9-22 10:10:22 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.18
2009-9-22 10:10:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2009-9-22 10:10:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2009-9-22 10:10:26 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8088
2009-9-22 10:10:27 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2009-9-22 10:10:27 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/31 config=null
2009-9-22 10:10:27 org.apache.catalina.startup.Catalina start
请问哪位高手教我如何做下优化?-------------------------------------------------------Tomcat6启动输出的内容如下:usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { start | stop }
2009-9-22 10:10:22 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\Program Files\Genuitec\Common\binary\com.sun.java.jre.win32.x86_1.5.0.011\bin;C:\tomcat6\bin
2009-9-22 10:10:22 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8088
2009-9-22 10:10:22 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 702 ms
2009-9-22 10:10:22 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2009-9-22 10:10:22 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.18
2009-9-22 10:10:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2009-9-22 10:10:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2009-9-22 10:10:26 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8088
2009-9-22 10:10:27 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2009-9-22 10:10:27 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/31 config=null
2009-9-22 10:10:27 org.apache.catalina.startup.Catalina start
提示的错误信息是:
严重: Servlet.service() for servlet CheckLog threw exception
java.lang.NullPointerException
at student.lsx.CheckLog.doGet(CheckLog.java:33)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Unknown Source)第一个Java文件:
package student.lsx;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Login
*/
public class Login extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Login() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
//中文乱码问题:
response.setContentType("text/html;charset=gbk");
PrintWriter pw=response.getWriter();
pw.println("<html>");
pw.println("<body>");
pw.println("<h1>登陆界面</h1>");
pw.println("<form action=CheckLog method=post>");
pw.println("用户名:<input type=text name=username ><br>");
pw.println("<br>");
pw.println("密码:<input type=password name=psw ><br>");
pw.println("<input type=submit value=login><br>");
pw.println("</form>");
pw.println("</body>");
pw.println("</html>");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.doGet(request,response);
}}第二个Java文件:
package student.lsx;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class CheckLog
*/
public class CheckLog extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
*
*/
/**
* @see HttpServlet#HttpServlet()
*/
public CheckLog() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
//接受用户名和密码
String us=request.getParameter("username");
String ps=request.getParameter("psw");
//验证
System.out.println(us);
System.out.println(ps);
if(us.equals("lsx")){
//合法跳转到welcome界面
response.sendRedirect("Welcom");
}
else{
//不合法
//跳转到登陆界面
response.sendRedirect("Login");
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.doGet(request, response);
}}
第三个文件:
package student.lsx;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;/**
* Servlet implementation class Welcom
*/
public class Welcom extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Welcom() {
super();
// TODO Auto-generated constructor stub
} /**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter pw=response.getWriter();
pw.println("welcom!");
} /**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
this.doGet(request, response);
}}