语源科技BlogJava-校园的味道

语源科技BlogJava-校园的味道http://www.blogjava.net/flynewton/flynewton' blogzh-cnThu, 07 May 2026 07:14:14 GMTThu, 07 May 2026 07:14:14 GMT60jdbchttp://www.blogjava.net/flynewton/archive/2009/04/03/263816.htmlflynewtonflynewtonFri, 03 Apr 2009 12:32:00 GMThttp://www.blogjava.net/flynewton/archive/2009/04/03/263816.htmlhttp://www.blogjava.net/flynewton/comments/263816.htmlhttp://www.blogjava.net/flynewton/archive/2009/04/03/263816.html#Feedback0http://www.blogjava.net/flynewton/comments/commentRss/263816.htmlhttp://www.blogjava.net/flynewton/services/trackbacks/263816.html 1 import java.io.IOException;
2 import java.io.InputStream;
3 import java.sql.Connection;
4 import java.sql.DriverManager;
5 import java.sql.ResultSet;
6 import java.sql.Statement;
7 import java.util.Properties;
8
9 public class JdbcMySql {
10
11     public static Properties getProperties() {
12         Properties props = new Properties();
13         InputStream is = null;
14         try {
15             is = JdbcMySql.class.getResourceAsStream("/jdbc_mysql.properties");
16             props.load(is);
17         } catch (Exception e) {
18             e.printStackTrace();
19             return null;
20         } finally {
21             if(is != null)
22                 try {
23                     is.close();
24                 } catch (IOException e) {
25                     e.printStackTrace();
26                 }
27         }
28         return props;
29     }
30
31     public static void main(String[] args) {
32         Connection conn = null;
33         Statement stmt = null;
34         ResultSet rs = null;
35
36         Properties props = getProperties();
37         if (props != null) {
38             String driver = props.getProperty("driver");
39             String url = props.getProperty("url");
40             String user = props.getProperty("user");
41             String password = props.getProperty("password");
42             String characterEncoding = props.getProperty("characterEncoding");
43
44             try {
45                 Class.forName(driver);
46                 conn = DriverManager.getConnection(url + "?characterEncoding=" + characterEncoding, user, password);
47                 stmt = conn.createStatement();
48
49                 String sql = "delete from student where id = '2'";
50                 stmt.executeUpdate(sql);
51
52                 sql = "select * from student";
53                 rs = stmt.executeQuery(sql);
54
55                 while (rs.next()) {
56                     System.out.print(rs.getInt(1) + "\t");
57                     System.out.print(rs.getString(2) + "\t");
58                     System.out.print(rs.getString(3) + "\n");
59                 }
60             } catch (Exception e) {
61                 e.printStackTrace();
62             } finally {
63                 try {
64                     if (rs != null)
65                         rs.close();
66                     if (stmt != null)
67                         stmt.close();
68                     if (conn != null)
69                         conn.close();
70                 } catch (Exception ex) {
71                     ex.printStackTrace();
72                 }
73             }
74         }
75     }
76 }

flynewton 2009-04-03 20:32 发表评论

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