最近在用TabHost,默认希望显示第2个tab,发现总是加载第三个tab的同时加载第一个,解决方法如下: 1.首先查看addTab(TabSpec tabSpec)源代码: /** * Add a tab. * @param tabSpec Specifies how to create the indicator and content. */ public void addTab(TabSpec tabSpec) { if (tabSpec.mIndicatorStrategy == nu…
使用repalceAll 方法出现java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0异常 代码如下: @Test public void testReplaceAll(){ String sql = "select * from per_handle where id not in('3ce7405509414105a65e7456987e7393')"; String cou…
Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed character class near index 0 [ ^ 出现此错误应该是字符转义出现问题: System.out.println(str.replaceAll("[", "22")); 解决方案:在[之前加上\\ System.out.println(str.replaceAll(&qu…
java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0*&*^ at java.util.regex.Pattern.error(Pattern.java:1924) at java.util.regex.Pattern.sequence(Pattern.java:2090) at java.util.regex.Pattern.expr(Pattern.java:1964…
1.split方法转化字符串为数组: String[] strPicArr = map.get("hw_pic").toString().split("*"); 报错: java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0 2.经调试跟踪发现字符串中带有“*”时,用“*”分隔字符串成数组是不正确的,正确的写法是: String[] strPicArr = ma…
使用str.split("[",15)时,出现Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed character class near index 0 [ ^的问题 解决办法为在[加上\\转义 str.split("\\[",15) …
以下http请求报错是因为,请求的地址前面有个空格.... 2019-01-09 03:30:23,154 ERROR [business.modules.merchantreportresult.service.MpopBasicMerchantReportDetailService] - 同步報備結果至联机交易平台失敗:Illegal character in scheme name at index 0: http://192.168.1.124:11081/mpframework/p/m…