1 创建test1 Dynamic Web Project站点
2 创建Servlet 设置java package(com.servlet)和class name(MyServlet)。
设置：
选择Add Library 
选择tomcat
3 在WebContent/WEB-INF 下面创建web.xml文件。
Web.xml文件内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.servlet.MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MyServlet</servlet-name>
<url-pattern>/MyServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>MyServlet</welcome-file>
</welcome-file-list>
</web-app>
4 编写MyServlet.java代码
import java.io.PrintWriter;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
response.setCharacterEncoding("GBK");
PrintWriter out=response.getWriter();
out.println("<HTML>");
out.println("<HEAD><TITLE>servlet sample</TITLE></HEAD>");
out.println("<BODY>");
out.println("servlet 实例 ");
out.println(this.getClass());
out.println("</BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
5 WebContent下面创建index.jsp
Body里面增加代码<jsp:forward page="MyServlet"></jsp:forward>
6 运行结果如下：
servlet 实例 class com.servlet.MyServlet
备注：
MyServlet.java代码修改
response.setContentType("text/html");
response.setCharacterEncoding("GBK");
PrintWriter out = response.getWriter();
out.print("<p>上下文路径：" + request.getServletPath() + "</p>");
out.print("<p>HTTP请求类型：" + request.getMethod() + "</p>");
out.print("<p>请求参数：" + request.getQueryString() + "</p>");
out.print("<p>请求URI：" + request.getRequestURI() + "</p>");
out.print("<p>请求URL：" + request.getRequestURL().toString() + "</p>");
out.print("<p>请求Servlet路径：" + request.getServletPath() + "</p>");
out.flush();
out.close();
运行结果：
上下文路径：/MyServlet
HTTP请求类型：GET
请求参数：null
请求URI：/test1/MyServlet
请求URL：http://localhost:8080/test1/MyServlet
请求Servlet路径：/MyServlet
注意：Web Deployment Assembly增加Add，对mysql.jar的引用
posted on 2012-07-04 16:32
jhtchina 阅读(116)
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