post 请求,headers里有属性(xxx).请求时报错: XMLHttpRequest cannot load <url>. Request header field xxx is not allowed by Access-Control-Allow-Headers in preflight response. 解决:在后端的Access-Control-Allow-Headers里,添加该 field.
转载请注明出处:http://www.cnblogs.com/xunzhaorendaxia/p/8570604.html 解决方案将select * from tablename where field in(arg1,arg2...arg1001)拆成select * from tablename where field in(arg1,arg2...arg1000) or field in(arg1001); 本案例代码为项目中处理SQL语句中<#in>标签代替in (?,?,?..)的
写python的时候报错: Exception : Traceback (most recent call last): File , in __bootstrap_inner self.run() File , in run RunYun( a, b, c, d, e, f ) File , in RunYun DbProxy.instance.insert(a, b) TypeError: insert() takes exactly arguments ( given) 明明定义的就是2个
#操作描述:搭建DG,主库修改参数log_archive_dest_1线程路径报错 ORA-16019: cannot use LOG_ARCHIVE_DEST_1 with LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST #原因:参数 #数据库当前使用的归档参数为log_archive_dest ,此参数与dest_1/2/3---参数不兼容 show parameter log_archive log_archive_dest string /u01/
spring mvc POST方式 接收单个参数,不加任何注解,参数名对应,接收到的值为null spring mvc POST方式 接收单个参数,加上@RequestBody,接收到参数格式:{"uid":"品牌分类大”} spring mvc POST方式 接收单个参数,加上@RequestParam报错: org.springframework.web.bind.MissingServletRequestParameterException: Required Stri
1. 乱码问题 编辑目标数据库的链接: 配置编码参数即可. 2. 报错 No operations allowed after statement closed. 需要调整wait_timeout: set global wait_timeout=1000000: 3. net_write_timeout 参数也需要调整:set global net_write_timeout='60000' kettle在迁移数据时,运行速度很慢,如果数量很大时,需要调整相关参数,不然运行到一半就报错. 迁移
主从报错1205 Slave SQL thread retried transaction 10 time(s) in vain, giving up. Consider raising the value of the slave_transaction_retries variable Last_Errno: 1205Last_Error: Slave SQL thread retried transaction 10 time(s) in vain, giving up. Consider