配置過濾器解決向資料庫插入中文問題

配置一個filter,

SetCodeFilter 源代碼：

package com.itcast.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 SetCodeFilter implements Filter {

public void destroy() {

// TODO Auto-generated method stub

}

public void doFilter(ServletRequest req, ServletResponse res,

FilterChain chain) throws IOException, ServletException {

req.setCharacterEncoding("utf8");

chain.doFilter(req, res);

}

public void init(FilterConfig arg0) throws ServletException {

}

}

web.xml檔案配置：、

<filter>

<filter-name>setCodeFilter</filter-name>

<filter-class>com.itcast.filter.SetCodeFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>setCodeFilter</filter-name>

<url-pattern>*.do</url-pattern>

</filter-mapping>

<filter-mapping>

<filter-name>setCodeFilter</filter-name>

<url-pattern>*.jsp</url-pattern>

</filter-mapping>