我有一个 HTML 字符串，其中包含文本、图像或 map 图像。 HTML 是动态生成的。现在，只要有<img>标签，它应该被 <center> 包裹。标签。为了实现这一目标，我使用 JSoup 并成功地将其应用于静态图像和文本。
但是，每当我尝试发布 map 时，HTML 就会失去其结构。我不明白发生了什么事。法线图像和 map 图像都有 <img>标签。该方法如何给出不同的输出？
这是完成这项工作的方法:
public String wrapImgWithCenter(String html){
Document doc = Jsoup.parse(html);
doc.select("img").wrap("<center></center>");
return doc.html();
}
原始 HTML，包含图像和包装前的 map 图像:
<p dir="ltr"><img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-4de5af73-68f1-401d-9feb-1dfde1373cff-file" /></p>
<p dir="ltr"><a href="15.2993265,74.123996"><img src="http://maps.google.com/maps/api/staticmap?center=15.2993265,74.123996&zoom=15&size=960x540&sensor=false&markers=color:blue%7Clabel:!%7C15.2993265,74.123996" /></a><br /><br /></p>
<p dir="ltr"><a href="22.572646,88.363895,-25.274398,133.775136"><img src="http://maps.google.com/maps/api/staticmap?center=22.572646,88.363895&zoom=2&size=960x540&markers=22.572646,88.363895%7C-25.274398,133.775136&path=color:0xff0000ff%7Cweight:5%7C22.572646,88.363895%7C-25.274398,133.775136&sensor=false" /></a><br /> </p>
包装后的结果
<p dir="ltr"> </p>
<center>
<img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-01516245-c773-4765-b542-ebecb964b255-file" />
</center>
<br />
<br />
<p></p>
<p dir="ltr"> </p>
<center>
<a href="15.2993265,74.123996"><img src="http://maps.google.com/maps/api/staticmap?center=15.2993265,74.123996&zoom=15&size=960x540&sensor=false&markers=color:blue%7Clabel:!%7C15.2993265,74.123996" /></a>
</center>
<p></p>
<p dir="ltr"> </p>
<center>
<a href="22.572646,88.363895,-25.274398,133.775136"><img src="http://maps.google.com/maps/api/staticmap?center=22.572646,88.363895&zoom=2&size=960x540&markers=22.572646,88.363895%7C-25.274398,133.775136&path=color:0xff0000ff%7Cweight:5%7C22.572646,88.363895%7C-25.274398,133.775136&sensor=false" /></a>
</center>
<br />
<p></p>
为了比较，
仅包含图像的有效输出:
<html>
<head></head>
<body>
<p dir="ltr">
<center>
<img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-959467a6-f83f-44c6-b6fc-88ba4f49d900-file" />
</center><br /></p>
<p dir="ltr">
<center>
<img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-46c38c96-c3b5-402e-a0b4-03209adf5203-file" />
</center><br /></p>
<p dir="ltr">
<center>
<img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-626ec909-c65e-452c-a341-61a361584eba-file" />
</center><br /> </p>
</body>
</html>
包含文本和图像的有效输出:
<html>
<head></head>
<body>
<p dir="ltr">text </p>
<p dir="ltr">
<center>
<img src="http://files.parsetfss.com/bcff7108-cbce-4ab8-b5d1-1f82827e6519/tfss-11343a01-7cd2-4f9e-9f9a-025ec3feb828-file" />
</center><br /> </p>
</body>
</html>
++++++++++++++++++++++++++++++++++++++
类中负责上述功能的方法:
private void createHtmlWeb(){
String listOfElements = "null"; // normally found if
// webTextcontains.maps.google.com
Toast.makeText(getApplicationContext(), "" + mainEditText.getHeight(), Toast.LENGTH_SHORT).show();
ParseObject postObject = new ParseObject("Post");
Spannable s = mainEditText.getText();
String webText = Html.toHtml(s);
webText = webText.replaceAll("(</?(?:b|i|u)>)\\1+", "$1").replaceAll("</(b|i|u)><\\1>", "");
// refactoring html
webText = wrapImgWithCenter(webText);
// Determine link and favourite types to add favourite a class around
// it.
if (webText.contains("a href")) {
String favourite = "favourite";
// Parse it into jsoup
Document doc = Jsoup.parse(webText);
// Create an array to tackle every type individually as wrap can
// affect whole body types otherwises.
Element[] array = new Element[doc.select("a").size()];
for (int i = 0; i < doc.select("a").size(); i++) {
if (doc.select("a").get(i) != null) {
array[i] = doc.select("a").get(i);
}
}
for (int i = 0; i < array.length; i++) {
// we don't want to wrap link types. Common part links have is
// http. Should update for somethng more secure.
if (array[i].toString().contains("http") == false) {
array[i] = array[i].wrap("<a class=" + favourite + "></a>");
}
}
// Log.e("From doc.body html *************** ", " " + doc.body());
Element element = doc.body();
Log.e("From element html *************** ", " " + element.html());
listOfElements = element.html();
}
// First need to do a check of the code if iti s a google maps image
if (webText.contains("maps.google.com")) {
Document doc = Jsoup.parse(webText); // Parse it into jsoup
for (int i = 0; i < doc.select("img").size(); i++) {
if (doc.select("img").get(i).toString().contains("maps.google.com")) {
// Get all numbers + full stops + get all numbers
Pattern noImage = Pattern.compile("(\\-?\\d+(\\.\\d+)?),(\\-?\\d+(\\.\\d+))+%7C(\\-?\\d+(\\.\\d+)?),(\\-?\\d+(\\.\\d+))");
// Gets the URL SRC basically.. almost.. lets try it
Matcher matcherer = noImage.matcher(doc.select("img").get(i).toString());
// Have two options - multi route or single route
if (matcherer.find() == true) {
for (int j = 0; j < matcherer.groupCount(); j++) {
latitude_to = Double.parseDouble(matcherer.group(1));
longitude_to = Double.parseDouble(matcherer.group(3));
latitude_from = Double.parseDouble(matcherer.group(5));
longitude_from = Double.parseDouble(matcherer.group(7));
}
String coOrds = "" + latitude_to + "," + longitude_to + "," + latitude_from + "," + longitude_from;
Element ele = doc.body();
ele.select("img").get(i).wrap("<a href=" + coOrds + "></a>");
listOfElements = ele.html();
listOfElements = listOfElements.replace("&", "&");
} else if (matcherer.find() == false) {
noImage = Pattern.compile("(\\-?\\d+(\\.\\d+)?),\\s*(\\-?\\d+(\\.\\d+)?)");
matcherer = noImage.matcher(doc.select("img").get(i).toString());
Toast.makeText(getApplicationContext(), "Regex Count:" + matcherer.groupCount(), Toast.LENGTH_LONG).show();
if (matcherer.find()) {
for (int j = 0; j < matcherer.groupCount(); j++) {
latitude = Double.parseDouble(matcherer.group(1));
parseGeoPoint.setLatitude(latitude);
longitude = Double.parseDouble(matcherer.group(3));
parseGeoPoint.setLongitude(longitude);
}
}
String coOrds = "" + latitude + "," + longitude;
Element ele = doc.body();
ele.select("img").get(i).wrap("<a href=" + coOrds + "></a>");
listOfElements = ele.html();
listOfElements = listOfElements.replace("&", "&");
}
} else {
// standard photo
Element ele = doc.body();
ele.select("img").get(i);
listOfElements = ele.html();
}
}
// Put new value in htmlContent
postObject.put("htmlContent", listOfElements);
} else {
postObject.put("htmlContent", webText);
}
mainEditText.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout(){
// TODO Auto-generated method stub
Rect r = new Rect();
mainEditText.getWindowVisibleDisplayFrame(r);
// int screenHeight = mainEditText.getRootView().getHeight();
// int heightDifference = screenHeight - (r.bottom - r.top);
}
});
// See if a trip exists
if (finalTrip != null) {
}
// Want to put the location in the location section
// if parsegeoPoint != null -- old information
if (latitude != -10000 && longitude != -10000) {
// Toast.makeText(getApplicationContext(),
// "Adding in location co-ods: " + latitude + " : " + longitude ,
// Toast.LENGTH_SHORT).show();
postObject.put("location", parseGeoPoint);
}
postObject.put("type", Post.PostType.HTML.getPostVal());
postObject.put("user", ParseObject.createWithoutData("_User", user.getObjectId()));
// Transfer these details
Intent i = new Intent(getApplicationContext(), WriteStoryAnimation.class);
i.putExtra("listOfElements", listOfElements);
i.putExtra("webText", webText);
i.putExtra("finalTrip", finalTrip);
i.putExtra("latitude", latitude);
i.putExtra("longitude", longitude);
if (mainEditText.length() > 0) {
startActivity(i);
} else {
Toast.makeText(getApplicationContext(), "Your story is empty", Toast.LENGTH_SHORT).show();
}
// finish();
// Toast.makeText(getApplicationContext(), "EditText Sie: " + height +
// " : " + desiredHeight, Toast.LENGTH_LONG).show();
}
// method to refactor html
public String wrapImgWithCenter(String html){
Document doc = Jsoup.parse(html);
//adding center tag before images
doc.select("img").wrap("<center></center>");
//adding gap after last p tag
for (int i =0; i<= 1; i++) {
doc.select("p").last().after("<br>");
}
return doc.html();
}
最佳答案
我已经解决了这个问题。 Fonkap 的评论是正确的，某些东西正在改变我的输出。我刚刚更改了调用 wrapImgWithCenter() 的位置。
我刚刚更改了 createHtmlWeb() 方法的最后一个，并执行了以下操作:
Log.e("listOfElements", listOfElements);
//refactoring html
listOfElements = wrapImgWithCenter(listOfElements);
// Put new value in htmlContent
postObject.put("htmlContent", listOfElements);
} else {
//refactoring html
webText = wrapImgWithCenter(webText);
postObject.put("htmlContent", webText);
}
现在输出符合要求。
关于java - JSoup "wrap"每次都没有按预期工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26669012/