<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<filter>
<filter-name>encode</filter-name>
<filter-class>com.conyou.filter.EncodeFilter</filter-class>
<!-- 设置初始参数,方便解耦,因为这个编码可以随时更改,不想在过滤器中改,毕竟过滤器是java代码 -->
<init-param>
<param-name>encode</param-name>
<param-value>utf-8</param-value> <!--这里的urf-8通过配置文件读取-->
</init-param>
</filter>
<filter-mapping>
<filter-name>encode</filter-name>
<!-- 我们的过滤器只是解决中文编码的,所以配置拦截servlet就行 -->
<url-pattern>/conyou/*</url-pattern>
</filter-mapping>
</web-app>
package com.conyou.filter;
import javax.servlet.*;
import java.io.IOException;
import javax.servlet.*;
import java.io.IOException;
public class EncodeFilter implements Filter {
private String encode;