Character Encoding Issue, all solutions

Hibernate
  <property name="hibernate.connection.CharSet">utf8</property>
  <property name="hibernate.connection.characterEncoding">utf8</property>
  <property name="hibernate.connection.useUnicode">true</property>



MySQL
Here is an doc for MySQL and Java io: http://blog.csdn.net/liuxueyongyu/article/details/2026788

Server encoding: iso-8859-1

Set page encoding to show Chinese character
response.setContentType("text/html;charset=utf-8");


Data request

1. form post
2. form get
3. url from html
4. sendRedirect

1. form post

Browser: utf-8

Web Server: iso-8859-1

Solution

request.setCharacterEncoding("utf-8")

2. form get / 3. url from html

Browser: utf-8

Web Server: iso-8859-1

Solution 1

@WebFilter("/CharacterEncoding")
public class CharacterEncoding implements Filter {
 public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
  request.setCharacterEncoding("utf-8"); //set request character encoding
  chain.doFilter(request, response);
 }
 @Override
 public void init(FilterConfig filterConfig) throws ServletException {
 }
 @Override
 public void destroy() {
 }
}

In web.xml
Write a filter by yourself

<filter>
 <filter-name>CharacterEncoding</filter-name>
 <filter-class>com.gvace.notebook.web.filter.CharacterEncoding</filter-class>
</filter>
<filter-mapping>
 <filter-name>CharacterEncoding</filter-name>
 <url-pattern>/*</url-pattern>
</filter-mapping>

or Spring Web Filter(do not need to write a class then)

 <!-- Encoding with spring filter -->
 <filter>
  <filter-name>encoding</filter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  <init-param>
   <param-name>encoding</param-name>
   <param-value>UTF-8</param-value>
  </init-param>
 </filter>
 <filter-mapping>
  <filter-name>encoding</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping>

Solution 2

request.setCharacterEncoding("utf-8")

Solution 3

new String(request.getParameter("name").getBytes("iso-8859-1"),"utf-8");

4. sendRedirect or All strings in URL

String info= java.net.URLEncoder.encode(name,"utf-8");

response.sendRedirect("EncodingPro/Welcome?username="+info);

Data Response

response.setContentType("text/html;charset=utf-8");

Cookie with Different Character set

  Saving

String val = java.net.URLEncoder.encode("中国字","utf-8");
Cookie cookie = new Cookie("name",val);

Getting

  String val = java.net.URLDecoder.decode(cookie.getValue(),"utf-8");

Properties file

For character encoding in properties file

Use native2ascii from jdk/bin/, copy the String into native2ascii, it will translate to ascii