乱码解决

最新推荐文章于 2024-05-27 18:56:00 发布

原创最新推荐文章于 2024-05-27 18:56:00 发布 · 172 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#数据库 #开发工具 #java

小工具集合专栏收录该内容

17 篇文章

订阅专栏

[size=xx-large][color=orange][b]乱码解决[/b][/color][/size]

[size=medium][color=red][b]1.超链接发送参数：[/b][/color][/size]

发送的时候使用URLEncoder.encode编码，接收的时候使用URLDecoder.decode解码，都按指定的编码格式进行编码、解码，可以保证不会出现乱码
URLEncoder.encode(String s, String enc) 
使用指定的编码机制将字符串转换为 application/x-www-form-urlencoded 格式 
URLDecoder.decode(String s, String enc) 
使用指定的编码机制对 application/x-www-form-urlencoded 字符串解码。

[size=medium][color=red][b]2.服务器配置编码[/b][/color][/size]


<Connector port="8080" protocol="HTTP/1.1"   
           connectionTimeout="20000"   
           redirectPort="8443" useBodyEncodingForURI="true" URIEncoding="UTF-8" />

[size=medium][color=red][b]3.DB编码[/b][/color][/size]


Mysql：
字符集：utf8 -- UTF-8 Unicode
校对：utf8_general_ci

[size=medium][color=red][b]4.IDE编码[/b][/color][/size]


1.Eclipse工作环境：windows--Preferences--workspaces--text file encoding
2.项目编码:右击--Properties--Resource--text file encoding

[size=medium][color=red][b]5.页面编码[/b][/color][/size]


<%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title></title>
    <link href="/css/main.css" type="text/css" rel="stylesheet"/>
</head>

[size=medium][color=red][b]6.配置文件:过滤器编码[/b][/color][/size]
1.spring


    <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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

2.Servlet编码：


1)web.xml:
	<!--中文编码过滤器-->
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>com.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>GB2312</param-value>
		</init-param>
		<init-param>
			<param-name>ignore</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<servlet-name>/*</servlet-name>
	</filter-mapping>

2)CharacterEncodingFilter.java:
/** 编码过滤器 */
public class CharacterEncodingFilter implements Filter {

	String encoding = null;
	FilterConfig filterConfig = null;

	/** 初始化方法 */
	public void init(FilterConfig filterConfig) throws ServletException {
		this.filterConfig = filterConfig;
		this.encoding = filterConfig.getInitParameter("encoding");
	}

	/** 过滤处理方法 */
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		if (encoding!=null){
			//对请求进行编码设置
			request.setCharacterEncoding(encoding);
                            response.setCharacterEncoding(encoding);
		}
		//将处理权转交给下一个处理器
		chain.doFilter(request,response);
	}

	/** 销毁方法 */
	public void destroy() {
		this.encoding = null;
		this.filterConfig = null;
	}

}