java – 具有“{”的字符串的模式匹配

首先我这样做了 –

String str = "{\"hits\":[{\"links_count\":6,\"forum_count\":11}],\"totalHitCount\":1}";

        Assert.assertTrue(str.matches("{\"hits\":[{\"links_count\":[0-9]{1,},\"forum_count   \":11}],\"totalHitCount\":[0-9]{1,}}"),"Partnership message does not appear");

这让我跟着错误 –

Exception in thread "main" java.util.regex.PatternSyntaxException: Illegal repetition
{"hits":[\{"links_count":[0-9]{1,"forum_count":11}],"totalHitCount":[0-9]{1,}}

然后我做了(逃脱“{”) –

String str = "\\{\"hits\":[\\{\"links_count\":6,\"forum_count\":11\\}],\"totalHitCount\":1\\}";

    Assert.assertTrue(str.matches("\\{\"hits\":[\\{\"links_count\":[0-9]{1,}\\}"),"Partnership message does not appear");

并得到以下错误 –

Exception in thread "main" java.lang.AssertionError: Partnership message does not appear expected:<true> but was:<false>

我在这里想念的是什么？

解决方法

你不需要逃脱{[在你的输入中.但是你需要在你的正则表达式中逃避[].

试试这个：

String str = "{\"hits\":[{\"links_count\":6,\"totalHitCount\":1}";

System.out.println(str.matches("\\{\"hits\":\\[\\{\"links_count\":[0-9]{1,\"forum_count\":11\\}\\],}\\}"));