JDBC连接MYSQL,批量执行SQL语句或在执行一个SQL语句之前执行一个SQL语句

conn = MysqlJdbcUtils.getConnection();
Statement ps=conn.createStatement();
ps.addBatch("truncate QB_ShowCount_Asite_copy");
ps.executeBatch();
String SrcSql = "select convert(unhex(hex(convert(Community using latin1))) using utf8) as Community ,PID from Qb_MenberCmmSets_List where site=7";
stmt = conn.prepareStatement(SrcSql);
rs = stmt.executeQuery();


上面是在下面的SQL语句执行之前执行清空命令


//批量执行SQL语句

方案一
Statement ps=conn.createStatement();
ps.addBatch("update user set money=money-100 where name=‘张三‘");
ps.addBatch("update user set money=money+100 where name=‘李四‘");
ps.addBatch("update temp set count=count+1 where name=‘张三‘");
ps.executeBatch();

不过这种使用的是Statement，只能是使用拼接字符串的方式，来传值；
方案二
如果多条语句重复，只是参数不变的话可以这样
 
PreparedStatement ps=conn.prepareStatement("insert into temp values(?)");
ps.setInt(1, 100);
ps.addBatch();
ps.setInt(1, 200);
ps.addBatch();
ps.executeBatch();
 
方案三 
写成存储过程大笑

参考http://blog.csdn.net/cnmcxiari/article/details/6632975