struts1中文乱码解决办法

最新推荐文章于 2018-11-18 21:44:15 发布

jay_man

最新推荐文章于 2018-11-18 21:44:15 发布

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分类专栏： struts 文章标签： Servlet Tomcat Struts XML JSP

本文链接：https://blog.youkuaiyun.com/jay_man/article/details/83324616

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本文介绍了解决Web应用中中文乱码问题的方法，包括设置JSP页面编码为UTF-8、修改Tomcat配置文件server.xml中的URIEncoding属性、创建过滤器类SetCharacterEncodingFilter并配置web.xml。

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1.首先jsp页面要使用UTF-8编码，个人建议将pageEncoding与contentType中的编码全部设置为UTF-8

2.修改tomcat配置文件server.xml,添加一个属性[红色部分]，如下

3.编写过滤器类

public class SetCharacterEncodingFilter implements Filter {

	protected String encoding = null;

	protected FilterConfig filterConfig = null;

	protected boolean ignore = true;

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.servlet.Filter#destroy()
	 */
	public void destroy() {

		this.encoding = null;
		this.filterConfig = null;

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,
	 *      javax.servlet.ServletResponse, javax.servlet.FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {

		// Conditionally select and set the character encoding to be used
		if (ignore || (request.getCharacterEncoding() == null)) {
			String encoding = selectEncoding(request);
			if (encoding != null)
				request.setCharacterEncoding(encoding);
		}

		// Pass control on to the next filter
		chain.doFilter(request, response);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
	 */
	public void init(FilterConfig filterConfig) throws ServletException {

		this.filterConfig = filterConfig;
		this.encoding = filterConfig.getInitParameter("encoding");
		String value = filterConfig.getInitParameter("ignore");
		if (value == null)
			this.ignore = true;
		else if (value.equalsIgnoreCase("true"))
			this.ignore = true;
		else if (value.equalsIgnoreCase("yes"))
			this.ignore = true;
		else
			this.ignore = false;

	}

	/*
	 * 
	 */
	protected String selectEncoding(ServletRequest request) {

		return (this.encoding);

	}

}

4.在web.xml中添加下列代码

<filter>
		<filter-name>Encoding</filter-name>
		<filter-class>
			struts.util.SetCharacterEncodingFilter
		</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>Encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>