场景:使用MyEclipse创建一个Servlet步骤
第一种方式使用向导创建
1.打开IDE, 选择 File->New->Web Project
2.填写项目名称,点击Finish
3.项目结构如图
4.使用Servlet Wizard创建,选择 File->New->others... 点击进入如下向导框
5.填写项目
6.点击Finish完成即可
7.可以看到生成TestServletWizardDemo类继承了HttpServlet
public class TestServletWizardDemo extends HttpServlet {
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
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(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
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(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
}8.同时web.xml中自动添加了配置
<servlet>
<display-name> </display-name>
<servlet-name>TestServletWizardDemo</servlet-name>
<servlet-class>com.zbz.TestServletWizardDemo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestServletWizardDemo</servlet-name>
<url-pattern>/servlet/TestServletWizardDemo</url-pattern>
</servlet-mapping> 9. 启动服务,根据以上信息可以组装url在浏览器访问 http://127.0.0.1:8080/TestDemo/servlet/TestServletWizardDemo
第二种方式,不用向导创建
1.在上面创建项目中创建类TestServletDemo,手动添加实现HttpServlet
public class TestServletDemo extends HttpServlet{
private static final long serialVersionUID = -5956706735123527929L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
/**中文乱码*/
response.setHeader("Content-type", "text/html;charset=UTF-8");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
String str ="这是手动创建的servlet";
out.println(str);
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
}
2. 在web.xml中配置servlet
<!-- 手动配置servlet start -->
<servlet>
<display-name>
</display-name>
<servlet-name>testServlet</servlet-name>
<servlet-class>com.zbz.TestServletDemo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>testServlet</servlet-name>
<url-pattern>/test</url-pattern>
</servlet-mapping>
<!-- 手动配置servlet end -->3.启动服务,根据以上信息可以组装url在浏览器访问 http://127.0.0.1:8080/TestDemo/test
以上TKS.