<!-- json跨域过滤器相关jar包and -->
<dependency>
<groupId>com.thetransactioncompany</groupId>
<artifactId>java-property-utils</artifactId>
<version>1.9.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.thetransactioncompany/cors-filter -->
<dependency>
<groupId>com.thetransactioncompany</groupId>
<artifactId>cors-filter</artifactId>
<version>1.3.2</version>
</dependency>
<!-- json跨域过滤器相关end -->
<!-- WEB.XML中JSON跨域处理 and-->
<filter>
<description>跨域过滤器</description>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
<init-param>
<param-name>cors.allowGenericHttpRequests</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>cors.allowOrigin</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.allowSubdomains</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>cors.supportedMethods</param-name>
<param-value>GET, POST, HEAD, PUT, DELETE</param-value>
</init-param>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modified</param-value>
</init-param>
<init-param>
<param-name>cors.exposedHeaders</param-name>
<param-value>Set-Cookie</param-value>
</init-param>
<init-param>
<param-name>cors.supportsCredentials</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CORS</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- JSON跨域处理 end-->
public class CrossDomainFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("==初始化允许跨域访问的拦截器==");
}
@Override
public void doFilter(ServletRequest request, ServletResponse resp,
FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse)resp;
response.addHeader("Access-Control-Allow-Origin", "*");
chain.doFilter(request, response);
}
@Override
public void destroy() {
}
}
我是直接写一个跨域的fitler、需要跨域的请求都放到中国风fitle下面 不过有些情况可能不行
filter-class 路径具体到方法名