CODEWITHSUNDEEP
javajspservletscharacter-encoding
Mehdi
Mehdi

Reputation: 3783

Servlet can not fetch the String with proper content type

My simple question is why I cant pass non english parameter with different character encoding through a url like this:

http://my-project-name:8080/something?word=علی

however I can send the parameter using a form with post method but I don't wanna do that & I wanna figure out why I can't do it using get method !

Here are my configurations:

In my web.xml I have:

    <filter>
    <filter-name>EncodingFilter</filter-name>
    <filter-class>sys.system.EncodingFilter</filter-class>
    <init-param>
        <param-name>encodings</param-name>
        <param-value>US-ASCII, UTF-8, EUC-KR, ISO-8859-15, ISO-8859-1</param-value>
    </init-param>
    <init-param>
        <param-name>inputEncodingParameterName</param-name>
        <param-value>ie</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>EncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

here is my servlet:

public class EncodingFilter implements Filter {

  @Override
  public void destroy() {

  }

  @Override
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    if (request.getCharacterEncoding() == null) {
        request.setCharacterEncoding("UTF-8");
    }
    if (response.getCharacterEncoding() == null) {
        response.setCharacterEncoding("UTF-8");
    }
    chain.doFilter(request, response);
  }

  @Override
  public void init(FilterConfig arg0) throws ServletException {
  }
}

my jsp header has set properly:

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>

 <head> 
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> ...

when I want to fetch the paramter word in my controller I have a character encoding, here is my controller:

@RequestMapping(value = "something")
public String stopJob(@RequestParam("word") String word) {
   ... do something
}

the interesting thing is everything has set properly even when I print

request.getCharacterEncoding();

It returns "UTF-8" to me but the "word" is not proper & It's corrupted. is there anyone here who know about this issue ? thanks !

Upvotes: 0

Views: 294

Answers (3)

Mehdi
Mehdi

Reputation: 3783

This problem took tones of time of me & finally I figured out what was the mistake :

the server.xml file which was inside eclipse workspace was not as same as the one the "Runtime Environment" ...

that was crap because the server.xml inside eclipse must be same as "Runtime Environment" has because It loads those configs & copy inside Workspace -> Server folder

so when I figured that out, I did these as you guess:

1) delete "Eclipse -> Window -> Preference -> Runtime Environment" server

2) delete everything inside workspace -> Server folder

3) add again the server from "Eclipse -> Window -> Preference -> Runtime Environment"

4) config the server to boot my project

5) change the server.xml file inside "workspace/Servers/TomcatServerFolderName" directory and add URIEncoding="UTF-8" useBodyEncodingForURI="true" inside my connector

<Connector URIEncoding="UTF-8" connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443" URIEncoding="UTF-8" useBodyEncodingForURI="true"/>

and after doing all of this character-encoding works just fine with get method !

Upvotes: 1

Bernd Ebertz
Bernd Ebertz

Reputation: 1327

To transport arbitrary data via url parameters you have to use the format as it's generated by UrlEncoder with all that % and hex numbers. The encoding in this context difines how the hex numbers are interpeted.

Upvotes: 0

apurvc
apurvc

Reputation: 750

Have you set URIEncoding inside your Tomcat see tomcat uriencoding also see this Can not send special characters (UTF-8) from JSP to Servlet: question marks displayed

Upvotes: 1

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