JSP/Servlet设置编码格式的问题(Android）

刚刚做了一个Android前台与后台Java的通信，查询回来到客户端的数据，中文出现乱码，没有什么概念，因为这两年来一直做swing，把web的东西给忘记了，现在备忘一下！

此文章借签于：http://blog.csdn.net/w627782664/article/details/7064442

新建一个Filter：

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;

public class CharacterEncodingFilter implements Filter {
	private FilterConfig filterConfig = null;
	private String encoding = null;
	@Override
	public void destroy() {
		System.out.println("CharacterEncodingFilter destroy mehod!");
		this.filterConfig = null;
		this.encoding = null;
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		System.out.println("CharacterEncodingFilter doFilter mehod!");
		request.setCharacterEncoding(this.encoding);
		response.setCharacterEncoding(this.encoding);
		chain.doFilter(request, response);
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		System.out.println("CharacterEncodingFilter init mehod!");
		this.filterConfig = filterConfig;
		this.encoding = filterConfig.getInitParameter("encoding");
	}

}

在web.xml里面，做如下配置：

	<filter>
		<description>CharacterEncodingFilter</description>
		<display-name>CharacterEncodingFilter</display-name>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>com.may.dao.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>utf-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

整个编码格式已经完成！