java - 去除重复字符串

Question

我有一个类似的字符串

JNDI Locations eis/FileAdapter,eis/FileAdapter used by composite 
HelloWorld1.0.jar are not available in the 
destination domain. 

eis/FileAdapter,eis/FileAdapter 发生了两次。我希望它被格式化为

 JNDI Locations eis/FileAdapter used by composite 
    HelloWorld1.0.jar are not available in the 
    destination domain. 

我试过下面的东西

String[ ] missingAdapters =((textMissingAdapterList.item(0)).getNodeValue().trim().split(","));
 missingAdapters.get(0) 

但是我错过了第二部分，有什么更好的方法来处理这个问题吗？

Answer 1

在您确认问题下方的评论中，重复项将始终通过逗号连接。使用此信息，这应该有效(对于大多数情况):

String replaceCustomDuplicates(String str) {
    if (str.indexOf(",") < 0) {
        return str; // nothing to do
    }
    StringBuilder result = new StringBuilder(str.length());
    for (String token : str.split(" ", -1)) {
        if (token.indexOf(",") > 0) {
            String[] parts = token.split(",");
            if (parts.length == 2 && parts[0].equals(parts[1])) {
                token = parts[0];
            }
        } 
        result.append(token + " ");
    }
    return result.delete(result.length() - 1, result.length()).toString();
}

用你的例子做一个小演示:

String str = "JNDI Locations eis/FileAdapter,eis/FileAdapter used by composite";
System.out.println(str);
str = replaceCustomDuplicates(str);
System.out.println(str);

修复了之前的错误