起因
專案要兼容ie11版本，部分ie瀏覽器默認打開的ie7版本導致不兼容。
目標
ie瀏覽器默認打開11版本
思路
通過filter過濾器設定請求頭指定ie默認內核版本
實施代碼
java過濾器
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 IECompatibilityFilter implements Filter {
private FilterConfig filterConfig = null;
String ieCompatible = null;
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException{
HttpServletRequest req = (HttpServletRequest)request;
HttpServletResponse res = (HttpServletResponse)response;
if ((this.ieCompatible == null) ||
(this.ieCompatible.trim().equalsIgnoreCase("AUTO"))) {
String userAgent = req.getHeader("User-Agent");
if (userAgent != null)
if (userAgent.contains("MSIE 7.0"))
{
res.setHeader("X-UA-Compatible", "IE=EmulateIE7");
} else if (userAgent.contains("MSIE 8.0"))
{
res.setHeader("X-UA-Compatible", "IE=EmulateIE8");
} else if (userAgent.contains("Trident/7.0"))
{
res.setHeader("X-UA-Compatible", "IE=EmulateIE10");
} else if (this.ieCompatible == null)
{
res.setHeader("X-UA-Compatible", "IE=edge");
}
} else if (this.ieCompatible != null) {
res.setHeader("X-UA-Compatible", this.ieCompatible);
}
chain.doFilter(req, res);
}
public void init(FilterConfig filterConfig)
{
this.filterConfig = filterConfig;
if (this.filterConfig != null)
this.ieCompatible = this.filterConfig
.getInitParameter("X-UA-Compatible");
}
public void destroy()
{
}
}
配置指定ie瀏覽器版本
web.xml
<!--指定ie瀏覽器版本開始 -->
<filter>
<filter-name>IECompatibilityFilter</filter-name>
<filter-class>com.jeecms.common.filter.IECompatibilityFilter</filter-class>
<init-param>
<param-name>X-UA-Compatible</param-name>
<param-value>IE=EmulateIE11</param-value>
<!-- <param-value>AUTO</param-value> -->
</init-param>
</filter>
<filter-mapping>
<filter-name>IECompatibilityFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--指定ie瀏覽器版本結束 -->
uj5u.com熱心網友回復：
學習了
轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/228131.html
標籤：Java相關