Js|servlet| Chinese for Request.getparameter () method in JSP and servlet, if you want to pass in
Chinese characters, there are several ways to solve,
One: Can be in the string temp = Request.getparameter ("xx");
temp = new String (temp.getbytes ("iso8859_1"));
Two: The commonly used method is to set a filter:
1. java files for Com.esoon.shabc.utils.SetCharacterEncodingFilter
Source file:
Package com.esoon.shabc.utils;
Import java.io.IOException;
Import java.io.UnsupportedEncodingException;
Import java.util.*;
Import Javax.servlet.Filter;
Import Javax.servlet.FilterChain;
Import Javax.servlet.FilterConfig;
Import javax.servlet.ServletException;
Import Javax.servlet.ServletRequest;
Import Javax.servlet.ServletResponse;
Import Javax.servlet.http.HttpServletRequest;
public class Setcharacterencodingfilter
Implements Filter {
protected String encoding = NULL;
protected Filterconfig filterconfig = null;
Protected Boolean ignore = true;
/**
* Take This filter out of service.
*/
public void Destroy () {
this.encoding = null;
This.filterconfig = null;
}
/**
* Select and set (if specified) the character encoding to is used to
* Interpret request parameters for this request.
*/
public void Dofilter (ServletRequest request, servletresponse response,
Filterchain chain)
Throws IOException, Servletexception {
Conditionally select and set the character encoding to be used
if (Ignore | | (request.getcharacterencoding () = null)) {
String encoding = selectencoding (request);
if (encoding!= null)
request.setcharacterencoding (encoding); Set the location where the request is encoded
}
Pass control in to the next filter
Pass control to next filter
Chain.dofilter (request, response);
}
/**
* Place this filter into service.
* Read the value of the initial parameter from the Web-app web.xml file
*/
public void init (Filterconfig filterconfig) throws Servletexception {
This.filterconfig = Filterconfig;
this.encoding = Filterconfig.getinitparameter ("encoding");
String value = filterconfig.getinitparameter ("Ignore");
if (value = = null)
This.ignore = true;
else if (Value.equalsignorecase ("true"))
This.ignore = true;
else if (value.equalsignorecase ("yes"))
This.ignore = true;
Else
This.ignore = false;
}
/**
* Select an appropriate character encoding to is used, based on the
* Characteristics of the current request and/or filter initialization
* Parameters. If no character encoding should is set, return
* <CODE>NULL</CODE>.
* Select the original code of request
*/
Protected String selectencoding (ServletRequest request) {
return (this.encoding);
}
}
2. Then add in the middle of the Web.xml file <web-app></web-app>:
<filter>
<filter-name>Set_Character_Encoding</filter-name>
<filter-class>com.esoon.shabc.utils.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>gb2312</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set_Character_Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
3. If the submitted field is inside the form, the form should be set to: Method= "POST"
Similar to: <form method= "POST" name= "Firstpriinfoform" ></form>
In this way, even if you submit multiple Chinese text segments, you need only
Request.getparameter ("# #");
Without having to convert new String () again.
