Urldecoder:incomplete trailing escape (%) pattern problem handling

http://blog.csdn.net/yangbobo1992/article/details/10076335

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In the recently used project, the pagination page is thrown in the export Excel

Java.lang.IllegalArgumentException:URLDecoder:Incomplete trailing escape (%) pattern

The page is a DWR page, which has been collected for a while to finally become a fruition. Solutions

The general meaning is understood, we just need to pass in the background of the parameter character before decode use ReplaceAll ('% ', '%25 ') can be

Java code

1. try {
2. PageTitle = Java.net.URLDecoder.decode (PageTitle,"UTF-8");
3. sc = Java.net.URLDecoder.decode (SC,"UTF-8");
4. } catch (Unsupportedencodingexception e) {
5. E.printstacktrace ();
6. }

The revised code is as follows:

Java code

1. try {
2. PageTitle = Java.net.URLDecoder.decode (Pagetitle.replaceall ("%", "%25"),"UTF-8");
3. sc = Java.net.URLDecoder.decode (sc.replaceall ("%", "%25"),"UTF-8");
4. } catch (Unsupportedencodingexception e) {
5. E.printstacktrace ();
6. }

Some references from: http://dwr.2114559.n2.nabble.com/Exception-URLDecoder-Incomplete-trailing-escape-pattern-td5396332.html

Special attention:

Sometimes when you export Excel with a Get method to cause the URL string length is too long, instead of using post to solve the above problem.

Use JS to implement the Post form submission code snippet:

JS Code

2. Function post (URL, PARAMS)
4. {
6. //Create a temporary form
8. var tempform = document.createelement ("form");
12. Tempform.action = URL;
14. Tempform.method = "POST";
16. TempForm.style.display = "None";
20. //Traverse individual parameters to add a text field to the form
22. For (var x in PARAMS)
24. {
26. var opt = document.createelement ("textarea");
28. Opt.name = x;
30. Opt.value = Params[x];
32. Tempform.appendchild (opt);
34. }
38. //Add the form to the current page.
40. Document.body.appendChild (Tempform);
44. //Submit form.
46. Tempform.submit ();
48. }

This method can also be used to solve: http://blog.csdn.net/zhensoft163/article/details/7298161

Urldecoder:incomplete trailing escape (%) pattern problem handling