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SpringMVC 跨域请求

程序员文章站 2022-03-05 12:04:47
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方法1:采用过滤器

package cn.mwee.wpos.report.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;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* 跨域请求处理
*/
public class CrossOriginFilter implements Filter{
private boolean isCross = false;

@Override
public void destroy() {
isCross = false;
}

@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
if(isCross){
HttpServletRequest httpServletRequest = (HttpServletRequest)request;
HttpServletResponse httpServletResponse = (HttpServletResponse)response;
System.out.println("拦截请求: "+httpServletRequest.getServletPath());
httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");
httpServletResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
httpServletResponse.setHeader("Access-Control-Max-Age", "0");
httpServletResponse.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
httpServletResponse.setHeader("Access-Control-Allow-Credentials", "true");
httpServletResponse.setHeader("XDomainRequestAllowed","1");
}
chain.doFilter(request, response);
}

@Override
public void init(FilterConfig filterConfig) throws ServletException {
String isCrossStr = filterConfig.getInitParameter("IsCross");
isCross = isCrossStr.equals("true")?true:false;
System.out.println(isCrossStr);
}

}

然后在web.xml中设置

<!--跨域请求设置-->
<filter>
<filter-name>CrossOriginFilter</filter-name>
<filter-class>cn.mwee.wpos.report.filter.CrossOriginFilter/filter-class>
<init-param>
<param-name>IsCross</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CrossOriginFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>


方法2:采用springmvc 的跨域设置

<!-- API 接口跨域配置 -->
<mvc:cors>
<mvc:mapping path="/**"
allowed-origins="*"
allowed-methods="POST, GET, OPTIONS, DELETE, PUT"
allowed-headers="Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With"
allow-credentials="true" />
</mvc:cors>
相关标签: mvc