第一种方式是，点击链接，触发一个js函数，在该函数内，用dom生成表单和输入框，将值赋在表单里，提交表单。
function postwith(to, p) { var myForm = document.createElement("form"); myForm.method = "post"; myForm.action = to; for ( var k in p) { var myInput = document.createElement("input"); myInput.setAttribute("name", k); myInput.setAttribute("value", p[k]); myForm.appendChild(myInput); } document.body.appendChild(myForm); myForm.submit(); document.body.removeChild(myForm); } <body> <a href="javascript:postwith('save',{'currentPage':'2','xisuo':'计算机'})">use js to post</a>save是个servlet
public class save extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); String currentPage = request.getParameter("currentPage"); String xisuo = request.getParameter("xisuo"); System.out.println(currentPage+"---"+xisuo); 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 method1111111111"); out.println(" </BODY>"); out.println("</HTML>"); out.flush(); out.close(); } 第二种是用表单 <body> <form name="form1" action="post-data-result.jsp" method="post"> <input name="post_data" type="text"></input> <input type="button" onclick="postData()" value="提交"></input> </form> <form name="form2" action="post-data-result.jsp" method="post"> <input name="post_data" type="text"></input> <input type="button" onclick="postData()" value="提交"></input> </form> <form name="form3" action="post-data-result.jsp" method="post"> <input name="post_data" type="text"></input> <input type="button" onclick="postData()" value="提交"></input> </form> </body>function postData(){ var myForm = document.createElement("form"); myForm.method = "post"; myForm.action = "post-data-result.jsp"; var inputs=document.getElementsByName("post_data"); var i; for (i=0;i<inputs.length;i++) { var myInput = document.createElement("input"); myInput.type = "text"; myInput.name="post_data"; myInput.value=inputs[i].value; myForm.appendChild(myInput); } document.body.appendChild(myForm); myForm.submit(); document.body.removeChild(myForm); }<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>获得客户端数据</title> </head> <body> <% //这里设置的字符集要跟index.html中的charset一致 request.setCharacterEncoding("utf-8"); String[] text=request.getParameterValues("post_data"); for(String t : text){ out.print(t+"<br>"); } %> </body> </html>
