[Java Web学习]JDBC事务处理

1. Spring中加入数据库的bean

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          destroy-method="close"
          p:driverClassName="com.mysql.jdbc.Driver"
          p:url="jdbc:mysql://localhost:3306/MY_FIRST_STUDY"
          p:username="root"
          p:password="123456"/>

2. 利用Connection

 @Autowired
     private DataSource dataSource;

 public int registerUserInfo(String userName, String passwordMD5, String createTime, String userType, String description) {
         Connection connection = DataSourceUtils.getConnection(dataSource);
         try {
             connection.setAutoCommit(false);
             StringBuilder userSalt = new StringBuilder("lizhix");
             userSalt.append(System.currentTimeMillis());
             StringBuilder insertUserInfo = new StringBuilder("INSERT INTO USER_INFO (USER_NAME, PASSWORD, CREATE_TIME, USER_TYPE, DESCRIPTION) " +
                     "VALUES (\"" + userName + "\",\"" + (passwordMD5 + userSalt) + "\",\"" + createTime + "\",\"" + userType + "\",\"" + description + "\");");

             StringBuilder insertUserSalt = new StringBuilder("INSERT INTO USER_SALT (USER_NAME, USER_SALT) VALUES (\"" + userName + "\",\"" + userSalt + "\");");

             int flag1 = jdbcTemplate.update(insertUserInfo.toString());
             int flag2 = jdbcTemplate.update(insertUserSalt.toString());

             connection.commit();
             return flag1 & flag2;
         } catch (SQLException se) {
             try {
                 connection.rollback();
                 connection.close();
                 return 0;
             } catch (Exception e) {
                 e.printStackTrace();
             }
         }
         return -1;
     }