1、SpringMVC 4.2以上版本。
2、添加sping配置：
??? <mvc:cors>
??? ??? <mvc:mapping path="/**" />
??? </mvc:cors>
3、添加過(guò)濾器CORSFilter：
@Component
public class CORSFilter implements Filter{
???? public void destroy() {}
???? public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)??
???? throws IOException, ServletException {
???????? HttpServletResponse response = (HttpServletResponse) res;?
? ????? response.setHeader("Access-Control-Allow-Origin", "*");?
? ????? response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");?
? ????? response.setHeader("Access-Control-Max-Age", "3600");?
? ????? response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");?
? ? chain.doFilter(req, res);
???? }
???? public void init(FilterConfig arg0) throws ServletException {}
}
4、web.xml中添加配置
<filter>
??? <filter-name>cors</filter-name>
??? <filter-class>com.account.admin.filter.CORSFilter</filter-class>
</filter>
<filter-mapping>
??? <filter-name>cors</filter-name>
??? <url-pattern>/*</url-pattern>
</filter-mapping>
