java参数传递的乱码问题

 java参数传递的乱码问题

编码设置的几种情况:

(1)页面里统一使用utf-8格式

<%@ page contentType="text/html;charset=UTF-8"%>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

(2)在提交之前对URL进行转码处理:

encodeURI(encodeURL(url))要用两次的encodeURI进行转码

在接收参数时进行解码:

URLDecoder.decode(request.getParam(“param”),”UTF-8”);

(3) 接受参数时进行编码转换

testString =new String(testString.getBytes(”ISO-8859-1〃),”utf-8〃)

这样的话,每一个参数都必须这样进行转码

(4) 在请求页面上开始处,设置请求的编码

request.setCharacterEncoding("UTF-8")把提交内容的字符集设为UTF-8,这样的话,接受此参数的页面就不必在转码了。

(5)修改tomcat的server.xml

<Connector port="8080" maxHttpHeaderSize="8192"

maxThreads="150" minSpareThreads="25" maxSpareThreads="75"

enableLookups="false" redirectPort="8443" acceptCount="100"

connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="utf-8"/>

(6)写一个编码过滤器

public void doFilter(ServletRequest arg0, ServletResponse arg1,

FilterChain arg2) throws IOException, ServletException {

HttpServletRequest req=(HttpServletRequest)arg0;

req.setCharacterEncoding("utf-8");

arg2.doFilter(arg0,arg1);

}

 

 

 

 

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