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我有一个要求，我必须根据条件回滚存储过程。

首先我调用存储过程，然后检查条件，如果条件失败，则必须回滚。下面是我尝试过的代码。

public static void main(String[] args) {
    Student student=new Student();

    student.setName("AAAA");
    student.setAge("20");
    student.setDob("14/08/1988");
    student.setPhone("98841");
    student.setSslc("1111");
    student.setHsc("222");
    student.setCollege("333");
    System.out.println(student);
    try {
        Connection conn=ConnectDB.getConnection();
        conn.setAutoCommit(false);

        CallableStatement callableStatement = null;
        String proc = "{call STUDENT_OP(?,?,?,?,?,?,?,?)}";
        callableStatement = conn.prepareCall(proc);
        Savepoint savepoint1 = conn.setSavepoint("ROLLBACK_SP");

        int age=Integer.parseInt(student.getAge());

        callableStatement.setString(1, student.getName());
        callableStatement.setInt(2, age);
        callableStatement.setString(3, student.getDob());
        callableStatement.setString(4, student.getPhone());
        callableStatement.setString(5, student.getSslc());
        callableStatement.setString(6, student.getHsc());
        callableStatement.setString(7, student.getCollege());
        callableStatement.registerOutParameter(8, java.sql.Types.NUMERIC);

        callableStatement.executeUpdate();

        int returnCode=callableStatement.getInt(8);
        getStudents();

        if(SOME CONDITION){
            conn.rollback(savepoint1);
        }
        getStudents();
    } catch (SQLException e) {
        e.printStackTrace();
    }
}

在上面的代码中，getStudents()方法打印学生表中的姓名列表。在回滚之前和回滚之后运行这个getStudents()方法。我已将 Savepoint 设置为Savepoint savepoint1 = conn.setSavepoint("ROLLBACK_SP"); 并使用此保存点回滚。

但是回滚没有发生。我错过了什么吗？请帮忙。

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1 回答 1

0

You can use modal component from ui-bootstrap.

于 2016-03-30T14:13:30.787 回答