jsp連接MySQL數(shù)據(jù)庫(kù)的代碼是什么？動(dòng)力節(jié)點(diǎn)小編來(lái)告訴大家。

1.下載驅(qū)動(dòng)mysql-connector-java-*.*.*-bin.jar 放到WEB-INF/lib/下，記得重啟tomcat。

2.示例代碼如下。

    String driverName="com.mysql.jdbc.Driver";
    String userName="username";
    String userPasswd="password";
    String dbName="dbname";
    String tableName="tablename";
    String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
    Class.forName("com.mysql.jdbc.Driver").newInstance();
    Connection conn=DriverManager.getConnection(url);
    Statement statement = conn.createStatement();
    String sql="SELECT * FROM "+tableName;
    ResultSet rs = statement.executeQuery(sql);
    // get the result
    ResultSetMetaData rmeta = rs.getMetaData();
    // the the number of columns
    int numColumns=rmeta.getColumnCount();
    // out each field
    while(rs.next()) {
        out.print(rs.getString(1)+" ");
        out.print("|");
        out.print(rs.getString(2));
        out.print("
    ");
    }
    out.print("
    ");
    out.print("Operations on the DB is done.");
    rs.close();
    statement.close();
    conn.close();