Springmvc-跨域请求-后端设置
1. web.xml 配置2. 过滤器实现类
最近在开发UIAPP的项目,出现了文件上传,请求出现跨域问题,在后台进行了相应的设置,因为项目本身的框架是Spring-MVC,所以使用的配置过滤器的方案,供各位参考
1. web.xml 配置
<filter>
<filter
-name
>crossFilter
</filter
-name
>
<filter
-class>com
.cd
.filter
.CrossFilter
</filter
-class>
</filter
>
<filter
-mapping
>
<filter
-name
>crossFilter
</filter
-name
>
<url
-pattern
>
filter-class 为过滤器实现类的路径,看自己包的位置改一下url-pattern 为过滤的路径,我设置的为所有路径,根据自己情况设定
2. 过滤器实现类
public class CrossFilter implements Filter {
@Override
public void init(FilterConfig filterConfig
) throws ServletException
{
}
@Override
public void doFilter(ServletRequest servletRequest
, ServletResponse servletResponse
, FilterChain filterChain
) throws IOException
, ServletException
{
HttpServletRequest httpServletRequest
= (HttpServletRequest
) servletRequest
;
HttpServletResponse res
= (HttpServletResponse
) servletResponse
;
HttpServletRequest req
= (HttpServletRequest
) servletRequest
;
String origin
= req
.getHeader("Origin");
if(!org
.springframework
.util
.StringUtils
.isEmpty(origin
)) {
res
.addHeader("Access-Control-Allow-Origin", origin
);
}
res
.addHeader("Access-Control-Allow-Methods", "*");
res
.addHeader("Access-Control-Allow-Credentials", "true");
res
.addHeader("Access-Control-Allow-Headers", "content-type");
res
.addHeader("Access-Control-Allow-Headers", "Authorization");
filterChain
.doFilter(servletRequest
, servletResponse
);
}
@Override
public void destroy() {
}
}
上文为本程序猿小学生在项目开发过程中的一些问题解决方案,仅供参考,不喜勿喷,欢迎评论交流!
