response.sendRedirect不使用angular js和java servlet？
我有以下web应用程序： 我的html页面：-response.sendRedirect不使用angular js和java servlet？,java,angularjs,servlets,Java,Angularjs,Servlets,我有以下web应用程序： 我的html页面：- <!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html ng-app="app"> <title>BPL Auction 2016</title> <head> <
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html ng-app="app">
<title>BPL Auction 2016</title>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<meta content="utf-8" http-equiv="encoding">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="" />
<!-- css -->
<link href="css/bootstrap.min.css" rel="stylesheet" />
<link href="css/style1.css" rel="stylesheet" />
<!-- HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js"></script>
<script src="js/angularref.js"></script>
</head>
<body ng-controller="MyController">
<div id ="header">
<h3 id="title">BPL Auction 2016</h3>
</div>
<!-- Top content -->
<div class="top-content">
<div class="inner-bg">
<div class="container">
<div class="row">
<div class="col-sm-8 col-sm-offset-2 text">
</div>
</div>
<div class="row">
<div class="col-sm-6 col-sm-offset-3 form-box">
<div class="form-top">
<div class="form-top-left">
<h3>Login to our site</h3>
<p>Enter your username and password to log on:</p>
</div>
<div class="form-top-right">
<i class="fa fa-lock"></i>
</div>
</div>
<div class="form-bottom">
<form name="loginForm" role="form" method="post" class="login-form">
<div class="form-group">
<label class="sr-only" for="form-username">Username or Company Email Id</label>
<input type="text" ng-model="username" name="form-username" placeholder="Username or Email Id..." class="form-username form-control" id="form-username" required>
</div>
<div class="form-group">
<label class="sr-only" for="form-password">Password</label>
<input type="password" ng-model="password" name="form-password" placeholder="Password..." class="form-password form-control" id="form-password" required>
<span>{{validationMessage}}</span>
</div>
<div class="social-login-buttons">
<button type="submit" ng-click="getDataFromServer()" class="btn">Sign in!</button>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
<script src="js/jquery.js"></script>
<script src="js/jquery.easing.1.3.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>
package com.bpl.loginservlet;
import java.io.BufferedReader;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONObject;
/**
* Servlet implementation class LoginBPLServler
*/
public class LoginBPLServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final String SALT = "my-salt-text";
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
StringBuilder sb = new StringBuilder();
BufferedReader br = request.getReader();
String str = null;
while ((str = br.readLine()) != null) {
sb.append(str);
}
JSONObject jObj = new JSONObject(sb.toString());
String username = jObj.getString("username");
String unHashedPassword = jObj.getString("password");
//signup(username, unHashedPassword);
//response.sendRedirect("/BPL2016/second.html");
// login should succeed.
if (login(username, unHashedPassword))
{
System.out.println("user login successfull.");
/*String successMessage ="Login Success. Redirecting ...";
response.setContentType("text/plain");
response.getWriter().write(successMessage);*/
response.sendRedirect("http:/localhost:8080/BPL2016/second.html");
}
else
{
String error ="Invalid UserName or Password";
response.setContentType("text/plain");
response.getWriter().write(error);
}
}
public void signup(String username, String password) {
String saltedPassword = SALT + password;
String hashedPassword = generateHash(saltedPassword);
insertIntoDB(username,hashedPassword);
}
public void insertIntoDB(String username,String hashedPassword)
{
Connection con;
PreparedStatement pst;
try{
//MAKE SURE YOU KEEP THE mysql_connector.jar file in java/lib folder
//ALSO SET THE CLASSPATH
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/bpl","root","root");
pst=con.prepareStatement("insert into tb_bpl_user_login(username,password) values(?,?)");
pst.setString(1, username);
pst.setString(2, hashedPassword);
pst.executeUpdate();
}
catch (Exception e)
{
System.out.println(e);
}
}
public Boolean login(String username, String password) {
Boolean isAuthenticated = false;
// remember to use the same SALT value use used while storing password
// for the first time.
String saltedPassword = SALT + password;
String hashedPassword = generateHash(saltedPassword);
System.out.println(hashedPassword);
String storedPasswordHash = getFromDB(username);
if(hashedPassword.equals(storedPasswordHash)){
isAuthenticated = true;
}else{
isAuthenticated = false;
}
return isAuthenticated;
}
public String getFromDB(String username)
{
Connection con;
PreparedStatement pst;
String storedPassword = "";
ResultSet rs;
try
{
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/bpl","root","root");
pst=con.prepareStatement("select password from tb_bpl_user_login where username =?");
pst.setString(1, username);
rs = pst.executeQuery();
while(rs.next())
{
storedPassword = rs.getString("password");
break;
}
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
return storedPassword;
}
public static String generateHash(String input) {
StringBuilder hash = new StringBuilder();
try {
MessageDigest sha = MessageDigest.getInstance("SHA-1");
byte[] hashedBytes = sha.digest(input.getBytes());
char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f' };
for (int idx = 0; idx < hashedBytes.length; ++idx) {
byte b = hashedBytes[idx];
hash.append(digits[(b & 0xf0) >> 4]);
hash.append(digits[b & 0x0f]);
}
} catch (NoSuchAlgorithmException e) {
// handle error here.
}
return hash.toString();
}
}
package com.bpl.loginservlet；
导入java.io.BufferedReader；
导入java.io.IOException；
导入java.security.MessageDigest；
导入java.security.NoSuchAlgorithmException；
导入java.sql.Connection；
导入java.sql.DriverManager；
导入java.sql.PreparedStatement；
导入java.sql.ResultSet；
导入javax.servlet.ServletException；
导入javax.servlet.annotation.WebServlet；
导入javax.servlet.http.HttpServlet；
导入javax.servlet.http.HttpServletRequest；
导入javax.servlet.http.HttpServletResponse；
导入org.json.JSONObject；
/**
*Servlet实现类LoginBPLServler
*/
公共类LoginBPLServlet扩展了HttpServlet{
私有静态最终长serialVersionUID=1L；
私有静态最终字符串SALT=“我的SALT文本”；
/**
*@请参阅HttpServlet#doPost（HttpServletRequest请求，HttpServletResponse响应）
*/
受保护的void doPost（HttpServletRequest请求、HttpServletResponse响应）引发ServletException、IOException{
StringBuilder sb=新的StringBuilder（）；
BufferedReader br=request.getReader（）；
字符串str=null；
而（（str=br.readLine（））！=null）{
某人附加（str）；
}
JSONObject jObj=新的JSONObject（sb.toString（））；
字符串username=jObj.getString（“用户名”）；
字符串unHashedPassword=jObj.getString（“密码”）；
//注册（用户名，unHashedPassword）；
//response.sendRedirect（“/BPL2016/second.html”）；
//登录应该成功。
if（登录名（用户名、未登录密码））
{
System.out.println（“用户登录成功”）；
/*String successage=“登录成功。重定向…”；
response.setContentType（“文本/普通”）；
response.getWriter（）.write（成功消息）*/
sendRedirect（“http:/localhost:8080/BPL2016/second.html”）；
}
其他的
{
字符串错误=“无效的用户名或密码”；
response.setContentType（“文本/普通”）；
response.getWriter（）.write（错误）；
}
}
公共无效注册（字符串用户名、字符串密码）{
字符串saltedPassword=SALT+密码；
字符串hashedPassword=generateHash（saltedPassword）；
insertIntoDB（用户名、哈希密码）；
}
public void insertIntoDB（字符串用户名、字符串哈希密码）
{
连接con；
编制报表pst；
试一试{
//确保将mysql_connector.jar文件保存在java/lib文件夹中
//还要设置类路径
Class.forName（“com.mysql.jdbc.Driver”）；
con=DriverManager.getConnection（“jdbc:mysql://localhost:3306/bpl“，”根“，”根“）；
pst=con.prepareStatement（“插入tb_bpl_用户登录（用户名、密码）值（？，）”；
pst.setString（1，用户名）；
pst.setString（2，哈希密码）；
pst.executeUpdate（）；
}
捕获（例外e）
{
系统输出打印ln（e）；
}
}
公共布尔登录（字符串用户名、字符串密码）{
布尔值isAuthenticated=false；
//记住在存储密码时使用相同的SALT值
//这是第一次。
字符串saltedPassword=SALT+密码；
字符串hashedPassword=generateHash（saltedPassword）；
System.out.println（hashedPassword）；
String storedPasswordHash=getFromDB（用户名）；
if（hashedPassword.equals（storedPasswordHash））{
isAuthenticated=true；
}否则{
isAuthenticated=false；
}
返回未经验证；
}
公共字符串getFromDB（字符串用户名）
{
连接con；
编制报表pst；
字符串storedPassword=“”；
结果集rs；
尝试
{
Class.forName（“com.mysql.jdbc.Driver”）；
con=DriverManager.getConnection（“jdbc:mysql://localhost:3306/bpl“，”根“，”根“）；
pst=con.prepareStatement（“从tb\u bpl\u用户登录中选择密码，其中用户名=？”；
pst.setString（1，用户名）；
rs=pst.executeQuery（）；
while（rs.next（））
{
storedPassword=rs.getString（“密码”）；
打破
}
}
捕获（例外e）
{
System.out.println（e.getMessage（））；
}
返回存储密码；
}
公共静态字符串生成器哈希（字符串输入）{
StringBuilder哈希=新的StringBuilder（）；
试一试{
MessageDigest sha=MessageDigest.getInstance（“sha-1”）；
byte[]hashedBytes=sha.digest（input.getBytes（））；
字符[]位={0'，1'，2'，3'，4'，5'，6'，7'，8'，9'，0,，
‘a’、‘b’、‘c’、‘d’、‘e’、‘f’}；
对于（int idx=0；idx>4]）；
附加（数字[b&0x0f]）；
}
}捕获（无算法异常）{
//在这里处理错误。
}
返回hash.toString（）；
}
}
我应该做哪些更改？您正在重定向ajax请求，而不是页面本身。除非AngularJS的ajax引擎将ajax请求上的重定向解释为整页重定向（鉴于这个问题，显然不是这样），否则您需要将所需的目标URL写入响应正文，并自己摆弄
window.locationpackage com.bpl.loginservlet;
import java.io.BufferedReader;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONObject;
/**
* Servlet implementation class LoginBPLServler
*/
public class LoginBPLServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final String SALT = "my-salt-text";
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
StringBuilder sb = new StringBuilder();
BufferedReader br = request.getReader();
String str = null;
while ((str = br.readLine()) != null) {
sb.append(str);
}
JSONObject jObj = new JSONObject(sb.toString());
String username = jObj.getString("username");
String unHashedPassword = jObj.getString("password");
//signup(username, unHashedPassword);
//response.sendRedirect("/BPL2016/second.html");
// login should succeed.
if (login(username, unHashedPassword))
{
System.out.println("user login successfull.");
/*String successMessage ="Login Success. Redirecting ...";
response.setContentType("text/plain");
response.getWriter().write(successMessage);*/
response.sendRedirect("http:/localhost:8080/BPL2016/second.html");
}
else
{
String error ="Invalid UserName or Password";
response.setContentType("text/plain");
response.getWriter().write(error);
}
}
public void signup(String username, String password) {
String saltedPassword = SALT + password;
String hashedPassword = generateHash(saltedPassword);
insertIntoDB(username,hashedPassword);
}
public void insertIntoDB(String username,String hashedPassword)
{
Connection con;
PreparedStatement pst;
try{
//MAKE SURE YOU KEEP THE mysql_connector.jar file in java/lib folder
//ALSO SET THE CLASSPATH
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/bpl","root","root");
pst=con.prepareStatement("insert into tb_bpl_user_login(username,password) values(?,?)");
pst.setString(1, username);
pst.setString(2, hashedPassword);
pst.executeUpdate();
}
catch (Exception e)
{
System.out.println(e);
}
}
public Boolean login(String username, String password) {
Boolean isAuthenticated = false;
// remember to use the same SALT value use used while storing password
// for the first time.
String saltedPassword = SALT + password;
String hashedPassword = generateHash(saltedPassword);
System.out.println(hashedPassword);
String storedPasswordHash = getFromDB(username);
if(hashedPassword.equals(storedPasswordHash)){
isAuthenticated = true;
}else{
isAuthenticated = false;
}
return isAuthenticated;
}
public String getFromDB(String username)
{
Connection con;
PreparedStatement pst;
String storedPassword = "";
ResultSet rs;
try
{
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/bpl","root","root");
pst=con.prepareStatement("select password from tb_bpl_user_login where username =?");
pst.setString(1, username);
rs = pst.executeQuery();
while(rs.next())
{
storedPassword = rs.getString("password");
break;
}
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
return storedPassword;
}
public static String generateHash(String input) {
StringBuilder hash = new StringBuilder();
try {
MessageDigest sha = MessageDigest.getInstance("SHA-1");
byte[] hashedBytes = sha.digest(input.getBytes());
char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f' };
for (int idx = 0; idx < hashedBytes.length; ++idx) {
byte b = hashedBytes[idx];
hash.append(digits[(b & 0xf0) >> 4]);
hash.append(digits[b & 0x0f]);
}
} catch (NoSuchAlgorithmException e) {
// handle error here.
}
return hash.toString();
}
}