Java 字符串不会被替换

Question

我制作了这个小脚本来测试某些东西，但我无法让它工作。我希望它将字符串中的“%20”替换为“”。打印出来:Ravenous%20Cache.zip

package test;

public class Test {

    public static void main(String[] args) {
        System.out.println(getArchivedName());
    }

    private static String cacheLink = "https://dl.dropboxusercontent.com/u/Ravenous%20Cache.zip";

    private static String getCacheLink() {
        return cacheLink;
    }

    private static String getArchivedName() {
        String name = cacheLink.replace("%20", " ");
        int lastSlashIndex = name.lastIndexOf('/');
        if (lastSlashIndex >= 0 
            && lastSlashIndex < getCacheLink().length() -1) { 
            return getCacheLink().substring(lastSlashIndex + 1);
        } else {
            System.err.println("Error Downloading Game Files.");
        }
        return "";
    }

}

Answer 1

当您获取返回原始字符串的子字符串时，您将再次调用 getCacheLink()

return name.substring(lastSlashIndex + 1);