servlet总结

最新推荐文章于 2025-02-21 17:58:15 发布

nywsp

最新推荐文章于 2025-02-21 17:58:15 发布

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jsp和servlet互相调用http://wenku.baidu.com/view/3ccfc1e1524de518964b7d1c.html

jsp中调用servlet方法






<jsp:include page="/servlet/type">
<jsp:param value="" name=""/>
</jsp:include>


返回为 request.getRequestDispatcher("head.jsp").include(request, response);

servlet调用jsp

request.setAttribute("name",info);
request.setAttribute("id",id);
request.getRequestDispatcher("/fenlei.jsp").include(request,response);

接收

List<String> name=(List<String>)request.getAttribute("name");
List<Integer> id=(List<Integer>)request.getAttribute("id");

 


servlet的xml配置


<servlet-name>myfist</servlet-name>  //随便取一个名字
<servlet-class>myfist</servlet-class>    //servlet类名必须跟文件一致
</servlet>

<servlet-mapping>
<servlet-name>myfist</servlet-name>  //跟起的名字保持一致
<url-pattern>/abc</url-pattern>  //随便取一个url名字


web客户端传参到servlet在


<form id="form1" method="post" action="my">
用户名：<br>
<input type="text" name="username"><br>
<input type="submit" value="提交">
</form>

request.setCharacterEncoding("utf-8");
String name=request.getParameter("username");
response.setContentType("text/html");

response.setHeader("content-type","text/html;charset=utf-8");   //跳出的时候如果出现中文乱码，，加上这句。。。
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(name);
out.println(", using the GET method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();