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Java String split()方法详细教程

Java String类的split()方法根据给定的正则表达式拆分字符串，并返回一个字符数组。 1、内部实现 public String[] split(String regex, int limit) { /* 如果正则表达式是一个快速路径 ...

Java中String字符串截取几种方法（substring,split）

Java中String字符串截取几种方法substring,split这是一个Java中的String的基础用法的演示。下面通过代码对大家进行讲解substring这里用来ndexOf,lastIndexOf这两个函数进行字符定位，一个是从前往后寻找第一个，一个是从后往前寻找第一个。splitspl...

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[帮助文档] QuickBI图表外部链接跳转报错Failedtoconvertvalueoftype'java.lang.String'torequiredtype'java.lang.Long';nestedexceptionisjava.lang.NumberFormatException:Forinputstring:"[order_id]"

问题描述Quick BI图表外部链接跳转报错：Failed to convert value of type 'java.lang.String' to required type 'java.lang.Long'; nested exception is java.lang.NumberForma...

[帮助文档] Dataphin集成任务报错java.lang.NumberFormatException:Forinputstring:"null"

问题描述用户是用集成任务同步数据，从AnalyticDB MySQL2.0同步到其他数据库，任务报错“com.alibaba.datax.common.exception.DataXException: Code:[ADSReader-00], Description:[错误发生了，请联系管理员]....

[帮助文档] Dataphin管道任务报错java.sql.SQLException:Incorrectstringvalue:'\xF4\x80\x80\x8E\xF4\x80...'forcolumn'XXX'atrow1

问题描述用户使用管道任务同步数据到MySQL，任务报错“java.sql.SQLException: Incorrect string value: '\xF4\x80\x80\x8E\xF4\x80...' for column 'XXX' at row 1”。问题原因报错字段有特殊符号，UTF-...

[帮助文档] 同步任务报错java.sql.SQLException:Incorrectstringvalue:'\xF4\x80\x80\x8E\xF4\x80...'forcolumn'XXX'atrow1

问题描述用户在使用集成任务同步数据到MySQL过程中，同步任务报错“java.sql.SQLException: Incorrect string value: '\xF4\x80\x80\x8E\xF4\x80...' for column 'XXX' at row 1”。问题原因报错字段可能存储...

Java String类的Split以竖线作为分隔符

问题Java中String类的Split方法，当用“|”进行分割时，发现并不能达到预期的效果。比如：分割字符串“ABC|DEF”，得到的String{}结果是“ABC|DEF”解决split里面有两个参数，其中一个是“limit”，表示匹配参数的个数，regex是匹配参数，split匹...

[帮助文档] Dataphin中管道任务将MySQL数据同步到Maxcompute,运行报错[同步数据出现业务脏数据情况,数据类型转换错误.]-String['']不能转为BigDecimal.-java.lang.NumberFormatException

问题描述管道任务将MySQL数据同步到Maxcompute，运行报错“[同步数据出现业务脏数据情况，数据类型转换错误 .] - String [''] 不能转为BigDecimal . - java.lang.NumberFormatException”。完整的异常如下：2021-11-05 00:...

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