我弄一天了，老是404找不到文件，非常纳闷
把JAVA文件放servlet也404咋办
文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\WEB-INF\web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--><web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"
metadata-complete="true"> <display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description><servlet>
<servlet-name>FirstServlet</servlet-name>
<servlet-class>com.helloweenvsfei.servlet.FirstServlet</servlet-class>
</servlet><servlet-mapping>
<servlet-name>FirstServlet</servlet-name>
<url-pattern>/servlet/FirstServlet</url-pattern>
</servlet-mapping></web-app>
文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\FirstServlet.java
package com.helloweenvsfei.servlet;
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;
public class FirstServlet extends HttpServlet{
public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
this.log("do doGet method");
this.execute(request,response);
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
this.log("do doPost method");
this.execute(request,response);
}
public long getLastModified(HttpServletRequest request){
this.log("do getLastModified method");
return -1;
}
private void execute(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("UTF-8");
String requestURI=request.getRequestURI();
String method=request.getMethod();
String param=request.getParameter("param");
response.setContentType("text/html");
PrintWriter out=response.getWriter();
out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println("<BODY>");
out.println(method+":"+param+"<br/>");
out.println("<form action='"+requestURI+"' method='get'><input type='text' name='param' value='param string'><input type='submit' value='GET"+requestURI+"'><form>");
out.println("<form action='"+requestURI+"' method='post'><input type='text' name='param' value='param string'><input type='submit' value='POST"+requestURI+"'></form>");
out.println("<script>document.write('lastdatatime'+document.lastModified);</script>");
out.println("</BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
}
我文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT
把JAVA文件放servlet也404咋办
文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\WEB-INF\web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--><web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"
metadata-complete="true"> <display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description><servlet>
<servlet-name>FirstServlet</servlet-name>
<servlet-class>com.helloweenvsfei.servlet.FirstServlet</servlet-class>
</servlet><servlet-mapping>
<servlet-name>FirstServlet</servlet-name>
<url-pattern>/servlet/FirstServlet</url-pattern>
</servlet-mapping></web-app>
文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\FirstServlet.java
package com.helloweenvsfei.servlet;
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;
public class FirstServlet extends HttpServlet{
public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
this.log("do doGet method");
this.execute(request,response);
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
this.log("do doPost method");
this.execute(request,response);
}
public long getLastModified(HttpServletRequest request){
this.log("do getLastModified method");
return -1;
}
private void execute(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("UTF-8");
String requestURI=request.getRequestURI();
String method=request.getMethod();
String param=request.getParameter("param");
response.setContentType("text/html");
PrintWriter out=response.getWriter();
out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println("<BODY>");
out.println(method+":"+param+"<br/>");
out.println("<form action='"+requestURI+"' method='get'><input type='text' name='param' value='param string'><input type='submit' value='GET"+requestURI+"'><form>");
out.println("<form action='"+requestURI+"' method='post'><input type='text' name='param' value='param string'><input type='submit' value='POST"+requestURI+"'></form>");
out.println("<script>document.write('lastdatatime'+document.lastModified);</script>");
out.println("</BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
}
我文件放在D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT
不能用java，要编译成.class并且要放在
D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\WEB-INF\com\helloweenvsfei\servlet\
目录下。
其中红色是java包对应的目录
D:\apache-tomcat-7.0.2-windows-x86\apache-tomcat-7.0.2\webapps\ROOT\WEB-INF\classes\com\helloweenvsfei\servlet\