java中截取获取固定字符前或后的字符串

java中截取获取固定字符前或后的字符串

截取固定字符后面的字符串：

 public static void main(String[] args) {
        String testUrl = "http://ceshi.com/test/12345";
        String result = testUrl.substring(testUrl.indexOf("com") + 3);
        System.out.println("result = " + result);
    }

result = /test/12345

截取固定字符前面的字符串：

 public static void main(String[] args) {
        String testUrl = "http://ceshi.com/test/12345";
        String result = testUrl.substring(0,testUrl.indexOf("test"));
        System.out.println("result = " + result);
    }

result = http://ceshi.com/