Java正则表达式获得html字符串中img标签的src中的url地址

叁歲伎倆 2022-03-08 05:48 787阅读 0赞

参考：[https://www.cnblogs.com/gmq-sh/p/5820937.html][https_www.cnblogs.com_gmq-sh_p_5820937.html]

// 只要src的url值
    	@Test
    	public void getImgStr() {
    		String htmlStr = "<img changedsize=\"true\" class=\"BDE_Image\" height=\"400\" src=\"https://imgsa.baidu.com/forum/w%3D580/sign=b23191a36b63f6241c5d390bb745eb32/8c361530e924b899e92f63a26e061d950a7bf623.jpg\">";
    		Set<String> pics = new HashSet<>();
    		String img = "";
    		Pattern p_image;
    		Matcher m_image;
    		// String regEx_img = "<img.*src=(.*?)[^>]*?>"; //图片链接地址
    		String regEx_img = "<img.*src\\s*=\\s*(.*?)[^>]*?>";
    		p_image = Pattern.compile(regEx_img, Pattern.CASE_INSENSITIVE);
    		m_image = p_image.matcher(htmlStr);
    		while (m_image.find()) {
    			// 得到<img />数据
    			img = m_image.group();
    			// 匹配<img>中的src数据
    			Matcher m = Pattern.compile("src\\s*=\\s*\"?(.*?)(\"|>|\\s+)").matcher(img);
    			while (m.find()) {
    				pics.add(m.group(1));
    			}
    		}
    		pics.forEach(System.out::println);
    	}

@Test
    	public void getImgStr1() {
    		String htmlStr = "<img changedsize=\"true\" class=\"BDE_Image\" height=\"400\" src=\"https://imgsa.baidu.com/forum/w%3D580/sign=b23191a36b63f6241c5d390bb745eb32/8c361530e924b899e92f63a26e061d950a7bf623.jpg\">";
    		String[] pics = htmlStr.split(" ");
    		for (String pic : pics) {
    			if (pic.contains("src")) {
    				String src = pic;
    				String substring = src.substring(5, src.length() - 2);
    				System.out.println(substring);
    			}
    		}
    	}

测试结果：

![2019031414083918.png][]

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 不积跬步无以至千里，不积小流无以成江海 \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

[https_www.cnblogs.com_gmq-sh_p_5820937.html]: https://www.cnblogs.com/gmq-sh/p/5820937.html
[2019031414083918.png]: /images/20220308/ef6a5a1b2fdb4b2c808972ae0f008e2e.png