操作html字符串

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class Test {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

// String htmlStr = "<b><font www=\"red\" pp='oo'>aaaaa</font><font www=\"red\" pp='oo'>aaaaa</font></b> ";

String htmlStr = "<p><span><img src=\'http://imagesv5.vivame.cn/pic/upload/phote/201511/07516786-7d60-4ca5-ad11-b6c8bb82d99d.jpg\' border=0></span></p><p><span>"

+ "<img src=\'http://imagesv5.vivame.cn/pic/upload/phote/201511/07516786-7d60-4ca5-ad11-b6c8bb82d99d.jpg\' border=0></span></p>"

+ "<p>hahahahha<span><img src=\'http://imagesv5.vivame.cn/pic/upload/phote/201511/07516786-7d60-4ca5-ad11-b6c8bb82d99d.jpg\' border=0></span></p> ";

//System.out.println("zyj "+Test.updateHtmlTag(htmlStr, "img", "src","http://www.redirect.com/xxx?url=\""));

System.out.println(imgSum(htmlStr));

}

/**

* @param htmlStr html文本

* @param searchTag 要修改的目标标签

* @param searchAttrib 目标标签中的属性

* @param newStr 修改值

*/

public static String updateHtmlTag(String htmlStr, String searchTag,

String searchAttrib,String newStr) {

// String regxpForTag = "<\\s*img\\s+([^>]*)\\s*>"; // 找出IMG标签

// String regxpForTagAttrib = "src=\"([^\"]+)\""; // 找出IMG标签的SRC属性

String regxpForTag ="<\\s*" + searchTag + "\\s+([^>]*)\\s*>";

String regxpForTagAttrib = searchAttrib + "\\s*=\\s*[\"|']([^\"|']+)[\"|']";

Pattern patternForTag = Pattern.compile(regxpForTag);

Pattern patternForAttrib = Pattern.compile(regxpForTagAttrib);

Matcher matcherForTag = patternForTag.matcher(htmlStr);

StringBuffer sb = new StringBuffer();

boolean result = matcherForTag.find();

while (result) {

StringBuffer sbreplace = new StringBuffer("<"+searchTag +" ");

System.out.println(matcherForTag.group(1));

Matcher matcherForAttrib = patternForAttrib.matcher(matcherForTag

.group(1));

if (matcherForAttrib.find()) {

System.out.println(matcherForAttrib.group(1));

matcherForAttrib.appendReplacement(sbreplace, searchAttrib+"=\""+newStr);

}

// matcherForTag.appendReplacement(sb, sbreplace.toString());

matcherForAttrib.appendTail(sbreplace);

matcherForTag.appendReplacement(sb, sbreplace.toString()+">");

result = matcherForTag.find();

}

matcherForTag.appendTail(sb);

return sb.toString();

}

/**

* 删除input字符串中的html格式

*

* @param input

* @param length

* @return

*/

public static String splitAndFilterString(String input) {

if (input == null || input.trim().equals("")) {

return "";

}

// 去掉所有html元素,

String str = input.replaceAll("\\&[a-zA-Z]{1,10};", "").replaceAll(

"<[^>]*>", "").replaceAll("[(/>)<]", "");

return str;

}

/**

*计算字符窜中标签img标签的个数

*/

public static int imgSum(String htmlStr){

String regxpForTag ="<\\s*" + "img" + "\\s+([^>]*)\\s*>";

int count = 0;

Pattern patternForTag = Pattern.compile(regxpForTag);

Matcher matcherForTag = patternForTag.matcher(htmlStr);

StringBuffer sb = new StringBuffer();

boolean result = matcherForTag.find();

while (result) {

StringBuffer sbreplace = new StringBuffer("<img" );

System.out.println(matcherForTag.group(1));

count++;

result = matcherForTag.find();

}

return count;

}

}