tomcat - Jersey 支持 CORS 吗？

Question

我看过允许 CORS 支持的帖子...但是我尝试了，我的运气为 0。

这是我的 angular.js 上用于 CORS 的函数:

var config = {
        method: 'GET',
        url: "//localhost:8080/ScienceCompanionApp/service/bpms/task/5497d038-82da-4a4e-83bd-2ef01b30de1a",
        headers: {
            'BPM-CONTEXT-ID':'CONTEXT',
            'Accept': 'application/json',
            'Content-type': 'application/json'

        }

    }
    $http(config).success(function(data,status,headers){  //do stuff here }

我已将以下内容添加到我的 web.xml 中:

  <filter>
  <filter-name>CorsFilter</filter-name>
  <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
</filter>
<filter-mapping>
  <filter-name>CorsFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

他们说就是这样......但在尝试进行 CORS 调用时，这似乎并没有起到作用:

然后我尝试手动将它添加到我的 REST API 中:

 @Path("/task/{taskId}")
    @GET
    @ApiOperation(value="Get BPMS Task", notes="You will need to JS decrypt Header param before sending")
    @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
    public Response getTask(@ApiParam(value="bpmWorklistTaskId in the BPMS url")@PathParam("taskId") final String taskId,
                        @ApiParam(value="bpmWorklistContext in the bpms url")@HeaderParam(WORKFLOW_CONTEXT_HEADER) final String contextId) {

        logger.info("REST : getTask(" + taskId + ", " + contextId + ")");
        try {
            return Response.status(200).entity(requestProcessor.getTaskDetails(taskId, contextId)).header("Access-Control-Allow-Origin", "*")
                    .header("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS").header("Access-Control-Allow-Headers", "X-Requested-With, Content-Type, X-Codingpedia").build();
        }  catch (Exception e) {
            throw createWebException(e);
        }
    }

 @Path("/task/{taskId}")
    @OPTIONS
    public Response getOptions(@ApiParam(value="bpmWorklistTaskId in the BPMS url")@PathParam("taskId") final String taskId,
            @ApiParam(value="bpmWorklistContext in the bpms url")@HeaderParam(WORKFLOW_CONTEXT_HEADER) final String contextId) 
        {
            return Response.ok()
                      .header("Access-Control-Allow-Origin", "*")
                      .header("Access-Control-Allow-Methods", "POST, GET, PUT, UPDATE, OPTIONS")
                      .header("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With,BPM-CONTEXT-ID,accept,bpm-context-id").build();
        }

仍然没有运气:(

我错过了什么吗？

Answer 1

执行以下步骤

1. 创建一个过滤器类，比如说 公共(public)类 CORSResponseFilter 实现 Filter {

   公共(public) CORSResponseFilter() {

   @覆盖公共(public)无效销毁(){//TODO 自动生成方法 stub

   public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)throws IOException, ServletException {

   字符串方法 = ((HttpServletRequest) 请求).getMethod();

   ((HttpServletResponse) 响应).addHeader("Access-Control-Allow-Origin", "*");

   if (method.equalsIgnoreCase("OPTIONS")) {

   ((HttpServletResponse) 响应).addHeader("访问控制允许方法", "POST、GET、OPTIONS、PUT、DELETE、HEAD");

   ((HttpServletResponse) 响应).addHeader("Access-Control-Allow-Headers", "来源、接受、内容类型、授权");

   ((HttpServletResponse) 响应).addHeader("变化", "来源");

   ((HttpServletResponse) 响应).addHeader("Access-Control-Max-Age", "1728000");

   返回；

   chain.doFilter(请求, 响应);

   @覆盖public void init(FilterConfig arg0) 抛出 ServletException {

   //TODO 自动生成方法 stub

2. 在 web.xml 中输入

   <filter-name>CORSFilter</filter-name>
   
   <filter-class>filter.CORSResponseFilter</filter-class>
   

   /过滤器>

   <过滤器映射>

   <filter-name>CORSFilter</filter-name>
   
   <url-pattern>/*</url-pattern>
   

   /过滤器映射>

希望这对你有帮助..