添加捐款功能,连接数据库完成

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

@@ -8,7 +8,10 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Date;
 
 import hunnu.sj.raise_money.record.Record;
 import hunnu.sj.raise_money.news.News;
@@ -63,7 +66,21 @@ public class UserService {
         }
         return false;
     }
-
+  public boolean donate(String username,String name ,String id,String 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();
+          SimpleDateFormat sdf = (SimpleDateFormat) DateFormat.getDateTimeInstance();
+          String sql = "insert into record(stu_name,donatemon,username,id,time) values('"+name+"','"+money+"','"+username+"','"+id+"','"+sdf.format(date)+"')";
+          Statement sttmt = conn.createStatement();
+          sttmt.executeUpdate(sql);
+          sttmt.close();
+          return true;
+      }catch (Exception e){
+          e.printStackTrace();
+      }
+      return false;
+  }
     public String getRole(String username){//从数据库获取用户的角色
         //SQLiteDatabase sdb=dbHelper.getReadableDatabase();
         String sql="select role from user where username = '" + username+"'";