java对象 这是uservo定义的源码
package VO.userVO; import PO.userPO.UserPO; public class UserVO { private String account;//用户账户，也是用户唯一标志，登录时使用，每个用户的账户是唯一的。账户格式要求只能包含英文字母、数字，且必须以英文字母开头。 private String username;//用户名，即用户昵称，类似与qq昵称 private String password;//用户密码 private String realName;//用户真实姓名 private String mail;//邮箱 private String birth;//生日，8位，如“19970516” private String phone;//手机号码，11位 public UserVO() { } public UserVO(String account, String username, String password) { this.account=account; this.username = username; this.password = password; } public UserVO(String account, String username, String password, String realName, String mail, String birth, String phone) { this.account=account; this.username = username; this.password = password; this.realName = realName; this.mail = mail; this.birth = birth; this.phone = phone; } public UserVO(UserPO userPO){ this.account=userPO.getAccount(); this.username = userPO.getUsername(); this.password = userPO.getPassword(); this.realName = userPO.getRealName(); this.mail = userPO.getMail(); this.birth = userPO.getBirth(); this.phone = userPO.getPhone(); } //get and set public String getAccount() { return account; } public void setAccount(String account) { this.account = account; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getRealName() { return realName; } public void setRealName(String realName) { this.realName = realName; } public String getMail() { return mail; } public void setMail(String mail) { this.mail = mail; } public String getBirth() { return birth; } public void setBirth(String birth) { this.birth = birth; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } }servlet 以下是servlet，将UserVO的ArrayList转换为json，之后response。
package Servlet.UserBlSer; import VO.userVO.UserVO; import bl.userBl.User; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; public class register extends HttpServlet { private static final long serialVersionUID = 1L; private User user; /** * @see HttpServlet#HttpServlet() */ public register(){ super(); user=new User(); } public static void main(String[] args){ System.out.println(123); } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ArrayList<UserVO> userVOS=new ArrayList<>(); UserVO userVO1=new UserVO("111","wxf","123"); UserVO userVO2=new UserVO("222","czf","456"); UserVO userVO3=new UserVO("333","wcy","789"); userVOS.add(userVO1); userVOS.add(userVO2); userVOS.add(userVO3); response.setContentType("application/json"); response.setCharacterEncoding("UTF-8"); JSONArray jsonarray = new JSONArray(); try { for (int i = 0; i < userVOS.size(); i++) { JSONObject jsonObject=new JSONObject(); jsonObject.put("account",userVOS.get(i).getAccount()); jsonObject.put("username",userVOS.get(i).getUsername()); jsonObject.put("password",userVOS.get(i).getPassword()); jsonarray.put(jsonObject); } } catch (JSONException e) { e.printStackTrace(); } PrintWriter pw = response.getWriter(); pw.write(jsonarray.toString()); pw.close(); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }ajax 最后是ajax获取json数组，并显示。
function getDataPack() { var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { var result=xmlhttp.responseText; var dataPack=eval(result); var output=""; for(var i=0;i<dataPack.length;i++){ output=output+dataPack[i].account+" "+dataPack[i].username+" "+dataPack[i].password+"\n"; } document.getElementById("test").innerHTML=output; } } xmlhttp.open("GET","/StockHubWeb/register",true); xmlhttp.send(); }http代码 以下是http代码，网页显示，按按钮后调用js方法，修改id为“test”的组件。
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>test1</title> <script src="js/test.js"></script> </head> <body> <h1 id="test">初始</h1> <button type="button" onclick="getDataPack()">搜索</button> </body> </html>以上就是全部内容，希望对大家有所帮助！
