web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-servlet.xml</param-value>
</context-param>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter>
<filter-name>contextFilter</filter-name>
<filter-class>app.filter.WebContextFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>contextFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list>
</web-app>
WebContextFilter
package app.filter;
import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* Created by 李卫海 on 2018/1/19.
*/
public class WebContextFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) servletResponse;
String origin = (String) servletRequest.getRemoteHost()+":"+servletRequest.getRemotePort();
response.setHeader("Access-Control-Allow-Origin", "http://127.0.0.1:8081");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Allow-Headers", "Authentication,Origin, X-Requested-With, Content-Type, Accept,withCredentials,user_id");
response.setHeader("Access-Control-Allow-Credentials", "true");
chain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
}
}
APIHomeController 。java
package app.controller;
/**
* 首页
* @author 李卫海 2017年11月13日
*
*/
@CrossOrigin(origins = "*", maxAge = 3600)
@Controller
@RequestMapping("/home")
public class APIHomeController extends APIBaseController {
@Autowired
private IHomeBusiness homeBusiness;
/**
* app 省接口(所有)
*/
@RequestMapping(value = "/province")
@ResponseBody
public ResultCode<List<DimRegion>>regionProvince(HttpServletRequest request,HttpServletResponse response){
Cookie[] values = request.getCookies();
if(values==null||values.length<=0){
Cookie cookie=new Cookie("sessionid",request.getSession().getId());
cookie.setMaxAge(3600);
response.addCookie(cookie);
}
System.out.println(values);
List<DimRegion> list=homeBusiness.regionProvince();
return new ResultCode<List<DimRegion>>(list);
}
}
springmvc.xml
<mvc:cors>
<mvc:mapping path="/home/**"
allowed-origins="http://127.0.0.1:8081"
allowed-methods="POST, GET, OPTIONS, DELETE, PUT"
allowed-headers="Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With,Accept,user_id,cookie"
allow-credentials="true"
max-age="3600" />
<!--exposed-headers="header1, header2"-->
</mvc:cors>
前端
<script>
import axios from "axios";
axios.defaults.withCredentials=true;
axios.interceptors.request.use(config => {
config.headers.user_id ='0'
return config
}, error => Promise.reject(error))
axios.interceptors.response.use(response => {
//console.log(response);
return response;
},
error => Promise.resolve(error.response))
created: function () {
const that = this;
var params = new URLSearchParams();
params.append('logistics_id', 1);
axios
.get("http://127.0.0.1:8080/app/home/province.do", params
).then(function(response) {
//console.log(response.data);
let data = response.data;
console.log(response)
if (data.errcode == 0) {
// that.$nextTick(function(){
// that.logistics=data.data;
// })
} else {
Toast(data.errmsg);
}
})
.catch(function(error) {
console.log(error);
//Toast(error);
});
},
</script>
