http请求参数中中文乱码问题解决办法
问题现象:
请求URL为:
http://127.0.0.1:9999/micp/queryObjectOut?moduleId=1&json={"hphm":"H3XX96","hpzl":"02","hphm_cn":"陕"}
后台接收到json字符串中hphm_cn始终为乱码。
解决办法:
1 首先处理整个项目编码,保持一致。servlet通过过滤器完成,过滤器代码如下:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
package cn.woogo.micp.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; /** * ClassName: CharacterEncodingFilter * * @Description: 处理请求参数乱码问题 * @author Zeus * @date 2016-5-17 */ public class CharacterEncodingFilter implements Filter { protected String encoding = null; protected FilterConfig filterConfig = null; protected boolean ignore = true; @Override public void destroy() { this.encoding = null; this.filterConfig = null; } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { if (ignore || (request.getCharacterEncoding() == null)) { String encoding = selectEncoding(request); if (encoding != null) request.setCharacterEncoding(encoding); } chain.doFilter(request, response); } @Override public void init(FilterConfig filterConfig) throws ServletException { this.filterConfig = filterConfig; // 获取初始化参数 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); } }
2 web.xml文件中配置:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!--编码处理过滤器 --> <filter> <filter-name>Character Encoding</filter-name> <filter-class>cn.woogo.micp.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <!--制定过滤器映射 --> <filter-mapping> <filter-name>Character Encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
3 tomcat配置
打开tomcat安装路径,e.g. D:\tomcat\apache-tomcat-7.0.64\conf\server.xml,增加URIEncoding。如下:
<Connector port="9999" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" URIEncoding ="UTF-8"/>