时间改成了网络时间

app/src/main/java/hunnu/sj/raise_money/DataBase/UserService.java

@@ -3,6 +3,10 @@ import android.content.Context;
 
 import androidx.core.content.ContextCompat;
 
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
@@ -11,6 +15,7 @@ import java.sql.Statement;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.Date;
 
 import hunnu.sj.raise_money.record.Record;
@@ -69,9 +74,10 @@ public class UserService {
   public boolean donate(String username ,String studentName,Long id,float money){
       conn = db.getConnection();//将用户捐款信息上传到数据库，成功返回true，失败返回false
       try{
-          Date date = new Date();
+          String time=getNetTime();
-          SimpleDateFormat sdf = (SimpleDateFormat) DateFormat.getDateTimeInstance();
+         // Date date = new Date();sdf.format(date)
-          String sql = "insert into record(stu_name,donatemon,username,id,time) values('"+studentName+"','"+money+"','"+username+"','"+id+"','"+sdf.format(date)+"')";
+          //SimpleDateFormat sdf = (SimpleDateFormat) DateFormat.getDateTimeInstance();
+          String sql = "insert into record(stu_name,donatemon,username,id,time) values('"+studentName+"','"+money+"','"+username+"','"+id+"','"+time+"')";
           String sql1 ="update stu_info set hasdonated=hasdonated+'"+money+"' where id='"+id+"'";
           //stu_id,stu_name,donatemon,time,username
           Statement sttmt = conn.createStatement();
@@ -84,6 +90,19 @@ public class UserService {
       }
       return false;
   }
+  public String getNetTime() throws IOException {
+        URL url=null;
+      url = new URL("http://www.baidu.com");
+      URLConnection baidu = url.openConnection();//生成连接对象
+      baidu.connect(); //发出连接
+      long  time13 =  baidu.getDate();
+      DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+      Calendar calendar = Calendar.getInstance();
+      calendar.setTimeInMillis(time13);
+      final String format = formatter.format(calendar.getTime());
+      String time=String.valueOf(format);
+      return time;
+  }
   public boolean longterm(String name,String phone,String descri, Long ID){
       conn = db.getConnection();//将长期资助信息上传到数据库，成功返回true，失败返回false
       try{