1.运行环境:E:\Program Files\Apache Software Foundation\Tomcat 5.5 +
E:\Program Files\Java\jdk1.5.02.写好一个servlet代码如下:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;public class HelloServlet extends HttpServlet
{
public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
{
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String docType="<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n";
out.println(docType+"<HTML>\n"+"<BODY>\n"+"<HEAD><TITLE>Hello</TITLE></HEAD>\n"+
"<H1>hello</H1>\n"+"</BODY></HTML>");
}
}3.把这个servlet放在E:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\ROOT\WEB-INF\classes 不知道是否正确?4.启动tomcat,在IE中输入 http://localhost/servelt/HelloServlet 是否正确?5.是否需要配置 web.xml文件 ?6.已经郁闷两天了 请高手解答 谢谢了
E:\Program Files\Java\jdk1.5.02.写好一个servlet代码如下:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;public class HelloServlet extends HttpServlet
{
public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
{
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String docType="<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n";
out.println(docType+"<HTML>\n"+"<BODY>\n"+"<HEAD><TITLE>Hello</TITLE></HEAD>\n"+
"<H1>hello</H1>\n"+"</BODY></HTML>");
}
}3.把这个servlet放在E:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\ROOT\WEB-INF\classes 不知道是否正确?4.启动tomcat,在IE中输入 http://localhost/servelt/HelloServlet 是否正确?5.是否需要配置 web.xml文件 ?6.已经郁闷两天了 请高手解答 谢谢了
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/servelt/HelloServlet</url-pattern>
</servlet-mapping>
再试试下面这个url看行不行,我也是才鸟,明白你的痛苦,祝好运
http://localhost:8080/HelloServlet
要配置 web.xml,加上
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/servelt/HelloServlet</url-pattern>
</servlet-mapping>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-template.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-template.tld</taglib-location>
</taglib>
</web-app>这是一个web.xml的实例,请参考
<!--所有的servlet写在这里-->
<servlet>
<!--依次写下每个servlet和类的对应关系-->
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<!--该servlet的初始化参数,共有两个-->
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!--如果有别的servlet,仿照第一个书写形式把它们依次写在这里-->
<!--开始写路径对应关系-->
<servlet-mapping>
<servlet-name>action</servlet-name>
<!--url对应,比如你写http://localhost:8080/*.do,它都会交给名字叫Action的servlet来执行-->
<url-pattern>*.do</url-pattern>
<!--如果有别的servlet,仿照第一个书写形式把它们路径对应关系写在这里-->
</servlet-mapping>