完全解決springMVC中文亂碼

1、頁面編碼

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>

2、URL中的亂碼

3、配置過濾器，指定全部請求的編碼

　　（1）配置spring的編碼過濾器，爲了防止spring中post方式提交的時候中文亂碼，方法：修改web.xml文件，添加spring的編碼過濾器

<!-- 配置編碼方式過濾器,注意一點:要配置在全部過濾器的前面 -->
  <filter>
    <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

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（2）配置編碼過濾器，方法：先建立filter類，再修改web.xml文件，注意的是放在spring的編碼過濾器以後

　　filter類：

package com.qiyuan.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;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EncoidingFilter implements Filter {

    private String encoding="";
    @Override
    public void destroy() {
        // TODO Auto-generated method stub

    }

    
    //過濾方法  是否往下執行
    @Override
    public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest request=(HttpServletRequest)arg0;
        HttpServletResponse response=(HttpServletResponse)arg1;
        
        request.setCharacterEncoding(encoding);
        response.setCharacterEncoding(encoding);

        //過濾通行證
        chain.doFilter(request, response);
    }

    //根據web.xml文件的配置進行初始化  
    @Override
    public void init(FilterConfig arg0) throws ServletException {
        this.encoding = arg0.getInitParameter("Encoding");
        
    }

}

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4、文件編碼

　　將文件另存爲utf-8格式

5、數據庫編碼

　　鏈接字符串指定編碼格式

　　

jdbc:mysql://localhost:3306/smbms?useUnicode=true&characterEncoding=UTF-8