如何将Cross Origin资源共享与Spring MVC 4.0.0 RESTful Webservice集成

我有一个简单的Web服务返回JSON数据。

用户类 （ com.bargadss.SpringService.Domain ）是包含的POJO类

user_ID，firstName，lastName，eMail

UserService类 （ com.bargadss.SpringService.DAO ）有两个主要操作

1. getAllUser（） – >查询数据库以从用户表中选择所有用户并返回列表{用户}
2. getUserById（int user_ID） – >查询数据库以根据ID 选择特定用户

SpringServiceController （ com.bargadss.SpringService.Controller ）如下：

package com.bargadss.SpringService.Controller; import java.util.List; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import com.bargadss.SpringService.DAO.UserService; import com.bargadss.SpringService.Domain.User; @RestController @RequestMapping("/service/user/") public class SpringServiceController { UserService userService=new UserService(); @RequestMapping(value = "/{id}", method = RequestMethod.GET,headers="Accept=application/json") public User getUser(@PathVariable int id) { User user=userService.getUserById(id); return user; } @RequestMapping(method = RequestMethod.GET,headers="Accept=application/json") public List getAllUsers() { List users=userService.getAllUsers(); return users; } } 

ListUserController （ com.bargadss.SpringService.Controller ）如下：

 package com.bargadss.SpringService.Controller; import java.util.LinkedHashMap; import java.util.List; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.client.RestTemplate; import org.springframework.web.servlet.ModelAndView; import com.bargadss.SpringService.Domain.User; @Controller public class ListUserController { @RequestMapping("/listUsers") public ModelAndView listUsers() { RestTemplate restTemplate = new RestTemplate(); String url="http://localhost:8080/SpringServiceWithRESTAndJSONExample/service/user/"; List users=restTemplate.getForObject(url, List.class); return new ModelAndView("listUsers", "users", users); } @RequestMapping("/dispUser/{userid}") public ModelAndView dispUser(@PathVariable("userid") int userid) { RestTemplate restTemplate = new RestTemplate(); String url="http://localhost:8080/SpringServiceWithRESTAndJSONExample/service/user/{userid}"; User user=restTemplate.getForObject(url, User.class,userid); return new ModelAndView("dispUser", "user", user); } } 

CorsFilter （ com.bargadss.CORS ）如下：

 package com.bargadss.CORS; import java.io.IOException; import javax.servlet.FilterChain; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.filter.OncePerRequestFilter; public class CorsFilter extends OncePerRequestFilter{ @Override protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException { if (request.getHeader("Access-Control-Request-Method") != null && "OPTIONS".equals(request.getMethod())) { // CORS "pre-flight" request response.addHeader("Access-Control-Allow-Origin", "*"); response.addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE"); response.addHeader("Access-Control-Allow-Headers", "Content-Type"); response.addHeader("Access-Control-Max-Age", "1800");//30 min } filterChain.doFilter(request, response); } } 

web.xml如下：

   SpringServiceWithRESTAndJSONExample  rest  org.springframework.web.servlet.DispatcherServlet  1   jsp org.apache.jasper.servlet.JspServlet   rest /*   jsp /WEB-INF/jsp/*   cors com.bargadss.CORS.CorsFilter   cors /*   

AngularJS从另一个Web服务器调用Web服务返回错误，指的是跨源资源共享问题！

必须在Controller端执行哪些更改才能消除错误？

为避免这种情况，是否需要在AngularJS方面进行任何更改？

Answer 1

检查cors-filter

下载cors-filter-2.1.2.jar和java-property-utils-1.9.1.jar 。

mvn依赖

  com.thetransactioncompany cors-filter 2.1.2   com.thetransactioncompany java-property-utils 1.9.1  

并在web.xml

  CORS com.thetransactioncompany.cors.CORSFilter   CORS /*