jdbc调用 oracle 存储过程操作

 1 package cn.itcast.web.oracle.util;
 2 
 3 import java.sql.Connection;
 4 import java.sql.DriverManager;
 5 import java.sql.ResultSet;
 6 import java.sql.Statement;
 7 
 8 public class JdbcUtil {
 9     private static String driver = "oracle.jdbc.driver.OracleDriver";
10     //1521是主端口，也可能是其它端口去连接oracle数据库
11     private static String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
12     private static String username = "scott";
13     private static String password = "friends";
14     private static Connection conn;
15     private static Statement stmt;
16     private static ResultSet rs;
17     //注册数据库驱动
18     static{
19         try {
20             Class.forName(driver);
21         } catch (Exception e) {
22             e.printStackTrace();
23             throw new RuntimeException("oracle驱动注册失败");
24         }
25     }
26     //获取数据库连接
27     public static Connection getConnection(){
28         Connection conn = null;
29         try {
30             conn = DriverManager.getConnection(url,username,password);
31         } catch (Exception e) {
32             e.printStackTrace();
33             throw new RuntimeException("oracle连接获取失败");
34         }
35         return conn;
36     }
37     //关闭连接对象
38         public static void close(Connection conn){
39             if(conn!=null){
40                 try {
41                     conn.close();
42                 } catch (Exception e) {
43                     e.printStackTrace();
44                     throw new RuntimeException("oracle连接关闭失败");
45                 }
46             }
47         }
48         public static void close(Statement stmt){
49             if(stmt!=null){
50                 try {
51                     stmt.close();
52                 } catch (Exception e) {
53                     e.printStackTrace();
54                     throw new RuntimeException("oracle连接关闭失败");
55                 }
56             }
57         }
58         public static void close(ResultSet rs){
59             if(rs!=null){
60                 try {
61                     rs.close();
62                 } catch (Exception e) {
63                     e.printStackTrace();
64                     throw new RuntimeException("oracle连接关闭失败");
65                 }
66             }
67         }
68 }

1     @Test
2     public void testConnection()
3     {
4         Connection conn=JdbcUtil.getConnection();
5         System.out.println(conn==null?"no":"yes");
6     }
7     

 1 //Java调用存储过程和函数
 2 public class OracleDao {
 3     //调用存储过程
 4     @Test
 5     public void callProcedure() throws Exception{
 6         Connection conn = JdbcUtil.getConnection();
 7         //第一参数:in  编号 7902
 8         //第二参数:out 姓名
 9         //第三参数:out 工作
10         //第四参数:out 薪水
11         String sql = "call findEmpNameAndSalAndJob(?,?,?,?)";
12         //创建专用于调用过程或函数的对象
13         CallableStatement cstmt = conn.prepareCall(sql);
14         //为?占位符设置in、out值
15         //hibernate从0开始，jdbc从1开始
16         cstmt.setInt(1,7902);//in值
17         cstmt.registerOutParameter(2,Types.VARCHAR);//out值
18         cstmt.registerOutParameter(3,Types.VARCHAR);//out值
19         cstmt.registerOutParameter(4,Types.INTEGER);//out值
20         cstmt.execute();//抛行调用存储过程
21         //依次接收3个返回值
22         String ename = cstmt.getString(2);
23         String job = cstmt.getString(3);
24         Integer sal = cstmt.getInt(4);
25         //显示
26         System.out.println(ename+"的工作是：" + job + "，它是薪水是" + sal);
27         //关闭连接对象
28         JdbcUtil.close(cstmt);
29         JdbcUtil.close(conn);
30     }
31     //调用存储函数
32     @Test
33     public void callFunction() throws Exception{
34         Connection conn = JdbcUtil.getConnection();
35         //参数一：in  编号 数值型
36         //参数二：out 姓名 字符串型
37         //返回值：out 薪水 数值型
38         String sql = "{? = call findEmpNameAndSal(?,?)}";
39         CallableStatement cstmt = conn.prepareCall(sql);
40         cstmt.setInt(2,7788);//in
41         cstmt.registerOutParameter(3,Types.VARCHAR);//out
42         cstmt.registerOutParameter(1,Types.INTEGER);//返回值
43         cstmt.execute();//执行调用存储函数
44         String ename = cstmt.getString(3);
45         Integer sal = cstmt.getInt(1);
46         System.out.println(ename+"的薪水是"+sal);
47         //关闭连接对象
48         JdbcUtil.close(cstmt);
49         JdbcUtil.close(conn);
50     }
51 }