在java中编写代码时,我需要将字符串拆分为"],[" 。以下是我的代码。
try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"))) {
int i=0;
String line;
line = reader.readLine();
String[] split = line.split("],[");
StringBuilder sb = new StringBuilder();
sb.append(split[0]);
String joined = sb.toString();
System.out.println(joined);
}
请在这里帮忙。
答案 0 :(得分:3)
你必须逃离[
。像:
line.split("\\],\\[");
您的代码将是:
try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"))) {
int i=0;
String line;
line = reader.readLine();
String[] split = line.split("\\],\\[");
StringBuilder sb = new StringBuilder();
sb.append(split[0]);
String joined = sb.toString();
System.out.println(joined);
}
答案 1 :(得分:1)
转义左方括号,因为[
是正则表达式中的特殊元字符,表示字符类的开头。
String[] split = line.split("],\\[");
当]
之前没有字符类符号]
的开头时, [
将匹配文字]
符号。