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enhance HtmlUtil。removeHtmlAttr

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Looly
2019-09-28 00:07:30 +08:00
parent 9eb00756f8
commit 32955b9c8c
4 changed files with 33 additions and 12 deletions
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21
hutool-http/src/main/java/cn/hutool/http/HtmlUtil.java
View File

@@ -55,7 +55,7 @@ public class HtmlUtil {
* @return 转义后的文本
*/
public static String escape(String text) {
return encode(text, TEXT);
return encode(text);
}
/**
@@ -118,7 +118,7 @@ public class HtmlUtil {
* @return 去除标签后的文本
*/
public static String removeHtmlTag(String content, boolean withTagContent, String... tagNames) {
String regex = null;
String regex;
for (String tagName : tagNames) {
if (StrUtil.isBlank(tagName)) {
continue;
@@ -146,10 +146,14 @@ public class HtmlUtil {
* @return 处理后的文本
*/
public static String removeHtmlAttr(String content, String... attrs) {
String regex = null;
String regex;
for (String attr : attrs) {
// (?i)表示忽略大小写
regex = StrUtil.format("(?i)\\s*{}=([\"']).*?\\1", attr);
// (?i) 表示忽略大小写
// \s* 属性名前后的空白符去除
// [^>]+? 属性值，至少有一个非>的字符，>表示标签结束
// \s+(?=>) 表示属性值后跟空格加>，既末尾的属性，此时去掉空格
// (?=\s|>) 表示属性值后跟空格（属性后还有别的属性）或者跟>（最后一个属性）
regex = StrUtil.format("(?i)(\\s*{}\\s*=[^>]+?\\s+(?=>))|(\\s*{}\\s*=[^>]+?(?=\\s|>))", attr, attr);
content = content.replaceAll(regex, StrUtil.EMPTY);
}
return content;
@@ -163,7 +167,7 @@ public class HtmlUtil {
* @return 处理后的文本
*/
public static String removeAllHtmlAttr(String content, String... tagNames) {
String regex = null;
String regex;
for (String tagName : tagNames) {
regex = StrUtil.format("(?i)<{}[^>]*?>", tagName);
content = content.replaceAll(regex, StrUtil.format("<{}>", tagName));
@@ -175,10 +179,9 @@ public class HtmlUtil {
* Encoder
*
* @param text 被编码的文本
* @param array 特殊字符集合
* @return 编码后的字符
*/
private static String encode(String text, char[][] array) {
private static String encode(String text) {
int len;
if ((text == null) || ((len = text.length()) == 0)) {
return StrUtil.EMPTY;
@@ -188,7 +191,7 @@ public class HtmlUtil {
for (int i = 0; i < len; i++) {
c = text.charAt(i);
if (c < 64) {
buffer.append(array[c]);
buffer.append(TEXT[c]);
} else {
buffer.append(c);
}

17
hutool-http/src/test/java/cn/hutool/http/test/HtmlUtilTest.java
View File

@@ -130,9 +130,26 @@ public class HtmlUtilTest {
@Test
public void removeHtmlAttrTest() {
// 去除的属性加双引号测试
String html = "<div class=\"test_div\"></div><span class=\"test_div\"></span>";
String result = HtmlUtil.removeHtmlAttr(html, "class");
Assert.assertEquals("<div></div><span></span>", result);
// 去除的属性后跟空格、加单引号、不加引号测试
html = "<div class=test_div></div><span Class='test_div' ></span>";
result = HtmlUtil.removeHtmlAttr(html, "class");
Assert.assertEquals("<div></div><span></span>", result);
// 去除的属性位于标签末尾、其它属性前测试
html = "<div style=\"margin:100%\" class=test_div></div><span Class='test_div' width=100></span>";
result = HtmlUtil.removeHtmlAttr(html, "class");
Assert.assertEquals("<div style=\"margin:100%\"></div><span width=100></span>", result);
// 去除的属性名和值之间存在空格
html = "<div style = \"margin:100%\" class = test_div></div><span Class = 'test_div' width=100></span>";
result = HtmlUtil.removeHtmlAttr(html, "class");
Assert.assertEquals("<div style = \"margin:100%\"></div><span width=100></span>", result);
}
@Test