package org.web;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import org.entity.Users;
import org.json.JSONObject;
import org.service.IUserService;
import org.service.impl.UserServiceImpl;
import sun.misc.BASE64Decoder;
import com.baidu.aip.face.AipFace;
public class FaceServlet extends HttpServlet {
/**
* (非 Javadoc)
* <p>Description(描述):get方法，主要调用post </p>
* <p>Title: doGet</p>
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
/**
* (非 Javadoc)
* <p>Description(描述):post方法，主要进行业务操作 </p>
* <p>Title: doPost</p>
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//防止乱码
response.setContentType("text/html;charset=utf-8");
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String img = request.getParameter("img"); //图像数据
String username = request.getParameter("username"); //用户名
String tag = request.getParameter("tag");
String APP_ID = "9802974";
String API_KEY = "OVYw5Ok0y9U8n6CfVPYt0wfZ";
String SECRET_KEY = "aCN3lupCarq3rC9G8Rylqz1d36Towp8G";
AipFace client = new AipFace(APP_ID, API_KEY, SECRET_KEY);
if(tag.equals("reg")){
//注册
face(username, img, response,request,client);
}else if(tag.endsWith("login")){
//登陆
login(img, response, username,request,client);
}
}
/**
*
* @Title: face
* @Description: 该方法的主要作用：注册
* 1.将base64编码的图片保存
* 2.将图片路径保存在数据库里面
* 3.将人脸图片识别在人脸库中注册
* @param 设定文件
* @return 返回类型：void
* @throws
*/
public void face(String username,String img,HttpServletResponse response,HttpServletRequest request,AipFace client) {
Users user = new Users();
IUserService userService = new UserServiceImpl();
// 图片名称
String fileName = System.currentTimeMillis() + ".png";
String basePath = request.getSession().getServletContext()
.getRealPath("picture/");
// 往数据库里面插入注册信息
user.setId(((Long)System.currentTimeMillis()).intValue());
user.setUsername(username);
user.setHeadphoto("/picture/" + fileName);
userService.save(user);
// 往服务器里面上传图片
GenerateImage(img, basePath + "/" + fileName);
// 给人脸库中加入一个脸
boolean flag = facesetAddUser(client, basePath + "/" + fileName,
username);
try {
PrintWriter out = response.getWriter();
// 中文乱码，写个英文比较专业 哈哈
if (flag == false) {
out.print("请把脸放上!!");//请把两脸放上
} else {
out.print("注册成功!!"); //注册成功
}
} catch (IOException e) {
// TODO 异常执行块！
e.printStackTrace();
}
}
/**
*
* @Title: login
* @Description: 该方法的主要作用：登陆
* 实现原理：
* 1.从前台接收用户名
* 2.然后把从前台传过来的图片先上传到服务器
* 3.把上传的这张人脸与人脸库中的人脸对应
* @param 设定文件
* @return 返回类型：String
* @throws
*/
public void login(String img,HttpServletResponse response,String username,HttpServletRequest request,AipFace client) {
// 图片名称
String fileName = System.currentTimeMillis() + ".png";
String basePath = request.getSession().getServletContext()
.getRealPath("picture/");
// 往服务器里面上传图片
GenerateImage(img, basePath + "/" + fileName);
response.setContentType("text/html,charset=utf-8;");
try {
PrintWriter out = response.getWriter();
Double result = verifyUser(client, basePath + "/" + fileName,username);
if (result > 90) {
// 匹配成功
out.print("登陆成功");
} else {
//匹配失败
out.print("登陆失败");
}
} catch (IOException e) {
// TODO 异常执行块！
e.printStackTrace();
}
}
/**
*
* @Title: GenerateImage
* @Description: 该方法的主要作用：// 对字节数组字符串进行Base64解码并生成图片
* @param @param imgStr
* @param @param imgFilePath
* @param @return 设定文件
* @return 返回类型：boolean
* @throws
*/
public boolean GenerateImage(String imgStr, String imgFilePath) {
if (imgStr == null) // 图像数据为空
return false;
BASE64Decoder decoder = new BASE64Decoder();
try {
// Base64解码
byte[] bytes = decoder.decodeBuffer(imgStr);
for (int i = 0; i < bytes.length; ++i) {
if (bytes[i] < 0) {// 调整异常数据
bytes[i] += 256;
}
}
// 生成jpeg图片
OutputStream out = new FileOutputStream(imgFilePath);
out.write(bytes);
out.flush();
out.close();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* @Title: facesetAddUser
* @Description: 该方法的主要作用：人脸注册,给人脸库中注册一个人脸
* @param @param client 设定文件
* @return 返回类型：void
* @throws
*/
public boolean facesetAddUser(AipFace client, String path, String username) {
// 参数为数据库中注册的人脸
HashMap<String, String> options = new HashMap<String, String>();
JSONObject res = client.addUser(username, "test_users_info",
Arrays.asList("group1", "group2"), path, options);
System.out.println(res.toString(2));
// {"log_id": 3621903690062422}
if (res.keySet().contains("error_code")) {
return false;
}
return true;
}
/**
*
* @Title: verifyUser
* @Description: 该方法的主要作用：人脸认证
* @param @param client
* @param @param path
* @param @param username
* @param @return 设定文件
* @return 返回类型：Double
* @throws
*/
public Double verifyUser(AipFace client, String path, String username) {
HashMap<String, Object> options = new HashMap<String, Object>(1);
options.put("top_num", 5);
/*try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO 异常执行块！
e.printStackTrace();
}*/
JSONObject res = client.verifyUser(username,
Arrays.asList("group1", "group2"), path, options);
Double result = Double.parseDouble(res.getJSONArray("result").get(0)
.toString());
return result;
}
}
