spring解决乱码问题

 

spring 解决乱码解决 

      

   spring 自带了一个解码过滤器 

            在web.xml 加上 

    

   

    

	<filter>
		<filter-name>utf</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>utf</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

2. 在 .me_tcat\conf 目录  servlet.xml 文件 

  <Connector> 标签里面 加上 

URIEncoding="UTF-8"

还可以自己实现过滤器 

   例：创建一个utf类 实现filter (javax包)

package cn.zj.springmvc.utils;

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 Utf implements Filter {

	public void destroy() {
		
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		chain.doFilter(request, response);
		
	}

	public void init(FilterConfig arg0) throws ServletException {
		
	}

}

在web.xml 中配置 过滤器 

        

<filter>
 		<filter-name>utf</filter-name>
 		<filter-class>cn.zj.springmvc.utils.Utf</filter-class>
 	</filter>
 	
 	<filter-mapping>
 		<filter-name>utf</filter-name>
 		<url-pattern>/*</url-pattern>
 	</filter-mapping>