修复所有数据库性能问题

WebRoot/JSPhandle/change_pass_update.jsp

@@ -33,7 +33,8 @@ String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.
     String url="jdbc:mysql://localhost:3306/db_school?useUnicode=true&characterEncoding=utf-8";    
     String use = "root";     
     String password = "";    
-    Class.forName(driver);    
+    Class.forName(driver);  
+    try{  
     Connection conn= DriverManager.getConnection(url,use,password);    
     PreparedStatement sql =conn.prepareStatement("update user set password=? where userName=?");   
     sql.setString(1,pass);
@@ -41,6 +42,9 @@ String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.
     int rtn=sql.executeUpdate();  
     sql.close();  
     conn.close();  
+    } catch (Exception ex) {
+			ex.printStackTrace();
+		}
     %>  
     <% 
     out.println("<script language=javascript>alert('修改成功！');window.location.href='index.html'</script>");