求问一个分割方法. -- 把特定字符之间的字符剥离出来.

[sasgsc]

条件:
<img src=\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\"><img src=\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\">
分离后想得到的结果:
String[] sArray={"jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\","jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\"};

求思路, 源码, 或者高效方法.

[sasgsc]

这里真是个神奇的地方, 我都憋了三天没干出来, 这会居然想到了..... 自己贴个解决办法

youtData="<img src=\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\"><img src=\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\">";
		
		String[] tmp=youtData.split("<img");
		
		List<String> l=new ArrayList<String>();
		
		Pattern pattern = Pattern.compile("src=\"data:(.*)\">");
		
		for(int i=0;i<tmp.length;i++)
		{
			Matcher matcher = pattern.matcher(tmp[i]);
			if(matcher.find())
			{
				System.out.println(matcher.group(1));
			}
		}

求更好的思路.

[Inhibitory]

import java.util.LinkedList;
import java.util.List;

public class Hello {
    public static void main(String[] args) throws Exception {
        String[] strs = {
                "<img src=\\\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\\\">",
                "<img src=\\\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\\\">"
        };

        List<String> result = new LinkedList<String>();

        String pattern = "<img src=\\\\\"data:image/(.+)\">";
        for (int i = 0; i < strs.length; ++i) {
            result.add(strs[i].replaceAll(pattern, "$1"));
        }

        System.out.println(result);
    }
}

输出

[jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\, jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\]

[Inhibitory]

注意正则里有贪婪与非贪婪模式: +与+?

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Hello {
    public static void main(String[] args) throws Exception {
        String str =
                "<img src=\\\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\\\"><img src=\\\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\\\">"
        ;

        String patternString = "<img src=\\\\\"data:image/(.+?)\">";
        Pattern pattern = Pattern.compile(patternString);
        Matcher matcher = pattern.matcher(str);

        while (matcher.find()) {
            System.out.println(matcher.group(1));
        }
    }
}

输出

jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\
jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\

[oh_Maxy]

正则真是个神奇的东西，总是会把俺绕晕。。

[回炉重造，学习编程中。。。]

引用 4 楼 oh_Maxy 的回复:

正则真是个神奇的东西，总是会把俺绕晕。。

同感，我现在只会最简单的，复杂的感觉脑细胞不够用。。。

[失落夏天]

首先楼主的代码是换行的 所以使用正则时必须添加忽视换行的不爱护(?s)。 楼主这活我以前经常干，从人家网站抓图片下载到本地。。

String btnstr="<img src=\"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAOijjEUYRScD1ooooA//Z\">";
		Pattern p=Pattern.compile("(?s)img src=\"data:image/(jpeg.*?)\"");//这里最后一个\不会截取，因为输入字符串中其实本身就没有"\"
		Matcher m=p.matcher(btnstr);
		while(m.find()){
			System.out.println(m.group(1));
		}