sql

src/test/java/com/yuxue/test/sql.java

@@ -0,0 +1,80 @@
+package com.yuxue.test;
+import java.sql.DriverManager;
+import java.sql.Connection;
+import java.sql.ResultSet;  
+import java.sql.Statement;  
+import java.sql.SQLException;
+
+      public class sql{          
+                String connectionUrl = "jdbc:sqlserver://localhost:1433;"  
+                        + "databaseName=AdventureWorks;integratedSecurity=true;";  
+                  String url = "jdbc:sqlserver://127.0.0.1:1433;databaseName=chepai;user=sa;password=197905";//以sa身份连接数据库:请根据自己的用户名和密码进行重新设置！！！！！！
+          
+                // 声明JDBC对象  
+                Connection con = null;  
+                Statement stmt = null;  
+                ResultSet rs = null;  
+          
+                try {  
+                    // 建立数据库连接.  
+                    System.out.println("尝试建立数据库连接.");  
+                    Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");  
+                    con = DriverManager.getConnection(url);  
+                    System.out.println("数据库连接成功!"); 
+                    
+//                    String SQL = "INSERT INTO Parking_in(number,color) VALUES('"+palte+"','"+col+"' )"; 
+//                    String SQL = "INSERT INTO Parking_out(number,color) VALUES('"+palte+"','"+col+"' )"; 
+                    stmt = con.createStatement();  
+//                    stmt.executeUpdate(SQL); 
+                    
+                    String time1=null,time2=null;
+                    String SQL = "SELECT * FROM Parking_in";  
+                    rs = stmt.executeQuery(SQL); 
+                    if(rs.next()) 
+                    time1=rs.getString("time_in");
+                    System.out.println(time1);
+                    
+                    
+                    SQL = "SELECT * FROM Parking_out"; 
+                    rs = stmt.executeQuery(SQL);
+                    if(rs.next()) 
+                    time2=rs.getString("time_in");
+                    System.out.println(time2);
+                    
+                    
+                    Count count=new Count();
+                    double cost=count.charging(time1, time2);
+                    System.out.println(cost);
+                    
+                }
+         
+                    
+                    
+                //处理和打印程序异常  
+                catch (Exception e) {  
+                    e.printStackTrace();  
+                }  
+          
+                finally {  
+                    if (rs != null)  
+                        try {  
+                            rs.close(); //关闭查询结果集句柄 
+                        } catch (Exception e) {  
+                        }  
+                    if (stmt != null)  
+                        try {  
+                            stmt.close();  //关闭语句句柄
+                        } catch (Exception e) {  
+                        }  
+                    if (con != null)  
+                        try {  
+                            con.close();   //关闭数据库连接
+                        } catch (Exception e) {  
+                        }  
+				}   
+                
+            
+
+    
+
+