JSP Chinese character processing code

Internet processing method 1 basket, I have used the following two effective solutions.
1. Write a string manipulation function for the program, save it in a static file, and include it in the JSP page where Chinese characters need to be processed.

 
<%! 
public String codeToString(String str) 
{ 
String s=str; 
try 
{ 
byte temp[]=s.getBytes("ISO-8859-1"); 
s=new String(temp); 
return s; 
} 
catch(Exception e) 
{ 
return s; 
} 
} 
%> 

To convert: coedeToString(request.getParameter (..)) ); That's it. It works.
2.1 a universal method, add a filter, and you can live for good.

 
package filters; 
import java.io.IOException; 
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; 
import javax.servlet.http.HttpServletRequestWrapper; 
public class TomcatFormFilter implements Filter { 
/** 
* Request.java 
*  right  HttpServletRequestWrapper  To expand ,  Does not affect the original function and can provide  
 some  HttpServletRequest 
*  Functions in the interface .  It can be unified 1 the  Tomcat  The default Settings for the Chinese problem to be resolved and only  
 You need a new one  Request  Object to replace the page  
* request  Objects can be . 
*/ 
class Request extends HttpServletRequestWrapper 
{ 
public Request(HttpServletRequest request) { 
super(request); 
} 
/** 
*  Converts the internal code of the data read by the form . 
*  from  ISO  Character to  GBK. 
*/ 
public String toChi(String input) { 
try { 
byte[] bytes = input.getBytes("ISO8859-1"); 
return new String(bytes, "GBK"); 
} 
catch (Exception ex) { 
} 
return null; 
} 
/** 
* Return the HttpServletRequest holded by this object. 
*/ 
private HttpServletRequest getHttpServletRequest() 
{ 
return (HttpServletRequest)super.getRequest(); 
} 
/** 
*  Read the parameter  --  Fixed a problem with Chinese . 
*/ 
public String getParameter(String name) 
{ 
return 
toChi(getHttpServletRequest().getParameter(name)); 
} 
/** 
*  Read parameter list  -  Fixed a problem with Chinese . 
*/ 
public String[] getParameterValues(String name) 
{ 
String values[] = 
getHttpServletRequest().getParameterValues(name); 
if (values != null) { 
for (int i = 0; i < values.length; i++) { 
values[i] = toChi(values[i]); 
} 
} 
return values; 
} 
} 
public void destroy() { 
} 
public void doFilter(ServletRequest request, ServletResponse 
response, 
FilterChain chain) throws IOException, ServletException { 
HttpServletRequest httpreq = (HttpServletRequest)request; 
if(httpreq.getMethod().equals("POST")) { 
request.setCharacterEncoding("GBK"); 
} else { 
request = new Request(httpreq); 
} 
chain.doFilter(request, response); 
} 
public void init(FilterConfig filterConfig) throws 
ServletException { 
} 
} 

Of course, remember to change web.xml

 
<filter> 
<filter-name>TomcatFormFilter</filter-name> 
<filter-class>filters.TomcatFormFilter</filter-class> 
</filter> 
<filter-mapping> 
<filter-name>TomcatFormFilter</filter-name> 
<url-pattern>/*</url-pattern> 
</filter-mapping> 

The above two methods have been tested, is relatively easy to use, later found new, will be updated oh ~