springboot+vue2.x 解決session跨域失效問題

服務端SpringBoot2.x   :localhost:8082html

前端Vue2.x                 :localhost:81前端

先後端的端口號不一樣,爲跨域,致使前端訪問後端時,每次訪問都新生產一個sessionID。解決以下:vue

 

後端:java

1.添加過濾器:

package com.nsoft.gkzp.syscore.config.filter;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(urlPatterns = "/*", filterName = "corsFilter")
public class CorsFilter implements Filter {

    final private static Logger logger = LogManager.getLogger(CorsFilter.class);
    @Override
    public void destroy() {
    }
    /**
     * 此過濾器只是處理跨域問題
     * @param servletRequest
     * @param servletResponse
     * @param chain
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        String origin = request.getHeader("Origin");
        if(origin == null) {
            origin = request.getHeader("Referer");
        }
        response.setHeader("Access-Control-Allow-Origin", origin);// 容許指定域訪問跨域資源(這裏不能寫*,*表明接受全部域名訪問,如寫*則下面一行代碼無效。謹記)
        response.setHeader("Access-Control-Allow-Credentials", "true");//true表明容許客戶端攜帶cookie(此時origin值不能爲「*」,只能爲指定單一域名)
        response.setHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS, PATCH"); /// 容許瀏覽器在預檢請求成功以後發送的實際請求方法名
        response.setHeader("Access-Control-Allow-Headers", "Authorization,Origin, X-Requested-With, Content-Type, Accept,Access-Token");// 容許瀏覽器發送的請求消息頭
        //response.setHeader("Access-Control-Max-Age", "86400");            // 瀏覽器緩存預檢請求結果時間,單位:秒

        chain.doFilter(request,response);
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }


}

2. springboot2.配置過濾器時,啓動類必須加上@ServletComponentScan纔會加載過濾器

package com.nsoft.gkzp;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.server.ConfigurableWebServerFactory;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpStatus;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

/**
 * springboot入口
 * MapperScan("com.nsoft.gkzp.**.dao")爲掃描mapper, 因此dao下面的類就不須要添加@mapper註解了
 * ServletComponentScan  添加了過濾器,故這裏要添加@ServletComponentScan註解,spring纔會掃描到過濾器(eg:com.nsoft.gkzp.syscore.config.filter.CorsFilter)
 */
@SpringBootApplication
@ServletComponentScan
@MapperScan("com.nsoft.gkzp.**.dao")
public class GzyGkzpApplication {

    public static void main(String[] args) {
        SpringApplication.run(GzyGkzpApplication.class, args);
    }


    /**
     * 在springboot整合vue前端時,vue使用url跳轉時報404錯誤,此處代碼解決此問題
     * 參照https://blog.csdn.net/Mr_EvanChen/article/details/83625082
     */
    @Bean
    public WebServerFactoryCustomizer<ConfigurableWebServerFactory> webServerFactoryCustomizer(){
        return factory -> {
            ErrorPage error404Page = new ErrorPage(HttpStatus.NOT_FOUND, "/index.html");
            factory.addErrorPages(error404Page);
        };
    }

}

3. spring-session 2.x 中 Cookie裏面了SameSite ,他默認值是 Lax 

SameSite Cookie 是用來防止CSRF攻擊,它有兩個值:Strict、Lax
SameSite = Strict:意爲嚴格模式,代表這個cookie在任何狀況下都不可能做爲第三方cookie;
SameSite = Lax  :意爲寬鬆模式,在get請求是能夠做爲第三方cookie,可是不能攜帶cookie進行跨域post訪問(這就很蛋疼了,咱們那個校驗接口就是POST請求)ios

package com.nsoft.gkzp.syscore.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.session.web.http.CookieSerializer;
import org.springframework.session.web.http.DefaultCookieSerializer;

/**
* https://www.cnblogs.com/hujinshui/p/11025848.html
* spring-session 2.x 中 Cookie裏面引入了SameSite他默認值是 Lax,
* SameSite Cookie 是用來防止CSRF攻擊,它有兩個值:Strict、Lax
* SameSite = Strict:意爲嚴格模式,代表這個cookie在任何狀況下都不可能做爲第三方cookie;
* SameSite = Lax:意爲寬鬆模式,在get請求是能夠做爲第三方cookie,可是不能攜帶cookie進行跨域post訪問
* 總結:前端請求到後臺,每次session都不同,每次都是新的會話,致使獲取不到用戶信息
*/
@Configuration public class SpringSessionConfig { public SpringSessionConfig() { } @Bean public CookieSerializer httpSessionIdResolver() { DefaultCookieSerializer cookieSerializer = new DefaultCookieSerializer(); // 取消僅限同一站點設置 cookieSerializer.setSameSite(null); return cookieSerializer; } }

 

前端:web

1.在 main.js (前端用axios)ajax

import axios from 'axios';
axios.defaults.withCredentials=true;//讓ajax攜帶cookie

 

用了1天半時間,改了不少次依然不行,後來發現是前端用了 proxy 代理,它自己也是已經處理了跨域問題,網上找的時候發現有的文章也用到這個了。但我這裏就是不行。spring

我原來的代碼:apache

1)寫的註冊頁面:axios

 

 2)全局配置以下:

main.js

// xenv 標記當前環境 true:開發環境   false:生產環境
const xenv = true;
// 註冊全局變量
Vue.prototype.$global = {
  //contentPath 標記根路徑,主要用於axios請求後端數據的url
   contentPath: xenv ? '/api/' : router.options.base  
};

(xenv設爲true;因此 根路徑contentPath的值必爲‘/api/’   ,而‘/api/’ 在vue.config.js裏配置爲代理,以下。)

vue.config.js

  devServer: {
    open: true,
    host: '0.0.0.0',
    port: 80,
    https: false,
    hotOnly: false,
    before: app => {
    },
    proxy: {
      // 配置跨域
      '/api': {
        target: 'http://127.0.0.1:8082/',
        ws: true,
        changOrigin: true,
        pathRewrite: {
          '^/api': '/'
        }
      }
    }
  },

 

2.不使用proxy代理,把根目錄寫死爲'http://127.0.0.1:8082/',就成功了,修改以下:

main.js:

// xenv 標記當前環境 true:開發環境   false:生產環境
const xenv = true;
// 註冊全局變量
Vue.prototype.$global = {
  // contentPath 標記根路徑,主要用於axios請求後端數據的url
  // contentPath: xenv ? '/api/' : router.options.base
  contentPath:  'http://127.0.0.1:8082/'
};

 

4. 跨域白名單

另:爲了安全起見,可在服務端設置可跨域訪問的白名單地址,參照 http://www.javashuo.com/article/p-gksecfux-bq.html

我參照寫的以下:

1.我以前自定義了一個配置文件 D:\workspace-gzy-gkzp\src\main\resources\resources\config.properties 

#自定義配置文件


#System Encoding
system.encoding=UTF-8

#圖片上傳下載路徑
system.file.folder.img = D:/file/img/


#容許CORS的IP(便可跨域訪問白名單,添加多個用英文逗號隔開)(本地鏈接在CorsFilter.java中已設置,就不在這裏配置了) 
system.accessControlAllowOrigin =http://120.24.253.6:8082

2.讀取配置文件類 D:\workspace-gzy-gkzp\src\main\java\com\nsoft\gkzp\syscore\config\MyDefinedUtil.java

package com.nsoft.gkzp.syscore.config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

/**
 * 自定義配置類 獲取config.properties相關參數
 *( 其餘類獲取值,請用註解@Autowired 方式 ,不然獲取不到值)
 * @author zdyang
 * @date 2019.08.30
 */
@Configuration //標識這個是一個配置類
@PropertySource(value = "classpath:resources/config.properties")
public class MyDefinedUtil {
    @Value("${system.encoding:UTF-8}")  //冒號後的值爲沒有配置文件時,制動裝載的默認值  //下面的屬性不能爲static類型,不然獲取不到值
    public  String SYSTEM_ENCODING;  //#System Encoding

    //文件管理
    @Value("${system.file.folder.img}")
    public  String SYSTEM_FILE_FOLDER_IMG;

    //容許跨域白名單
    @Value("${system.accessControlAllowOrigin}")
    public  String SYSTEM_ACCESSCONTROLALLOWORIGIN;
}

3.跨域配置類:D:\workspace-gzy-gkzp\src\main\java\com\nsoft\gkzp\syscore\config\filter\CorsFilter.java

 

package com.nsoft.gkzp.syscore.config.filter;

import com.nsoft.gkzp.syscore.config.MyDefinedUtil;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(urlPatterns = "/*", filterName = "corsFilter")
public class CorsFilter implements Filter {

    final private static Logger logger = LogManager.getLogger(CorsFilter.class);

    @Autowired
    MyDefinedUtil myDefinedUtil;

    @Override
    public void destroy() {
    }
    /**
     * 此過濾器只是處理跨域問題
     * @param servletRequest
     * @param servletResponse
     * @param chain
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        String origin = request.getHeader("Origin");
        if(origin == null) {
            origin = request.getHeader("Referer");
        }
        //容許跨域白名單
        String[] whiteList = (myDefinedUtil.SYSTEM_ACCESSCONTROLALLOWORIGIN).split(",") ;
        boolean isValid = false;
        logger.info("origin="+origin);
        for(String ip : whiteList){
            if(origin != null &&  origin.equals(ip)){
                isValid = true;
                break;
            }
        }
        logger.info("isValid="+isValid);//如爲跨域請求,下面的"Access-Control-Allow-Origin"值置爲null,就沒法訪問了。。。若是爲非跨域請求,這個爲null不會受影響,依然容許訪問
        response.setHeader("Access-Control-Allow-Origin", isValid ? origin : "null");// 容許指定域訪問跨域資源(這裏不能寫*,*表明接受全部域名訪問,如寫*則下面一行代碼無效。謹記)
        response.setHeader("Access-Control-Allow-Credentials", "true");//true表明容許客戶端攜帶cookie(此時origin值不能爲「*」,只能爲指定單一域名)
        response.setHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS, PATCH"); /// 容許瀏覽器在預檢請求成功以後發送的實際請求方法名
        response.setHeader("Access-Control-Allow-Headers", "Authorization,Origin, X-Requested-With, Content-Type, Accept,Access-Token");// 容許瀏覽器發送的請求消息頭
        //response.setHeader("Access-Control-Max-Age", "86400");            // 瀏覽器緩存預檢請求結果時間,單位:秒

        chain.doFilter(request,response);
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }


}

 

 

 

4.後記 (2019.11.05)

上面代碼用  origin.equals(ip) 去斷定不是很好。

緣由是測試時發現,

1)origin若是是域名的話(值爲http://zhxy.nsoft.com.cn:8082),若是是ip地址的話會有斜槓(值爲:http://120.24.253.6:8082/)。這樣在config.properties配置文件配置白名單參數system.accessControlAllowOrigin時會有不少,其很麻煩

2)我把http協議改成https協議時:端口號變了,http也改爲https,參數system.accessControlAllowOrigin改的時候很麻煩。

修改配置以下:

config.properties  (這裏對於localhost,127.0.0.1兩個ip,不要放到正式環境。不然如對方用本地環境,去訪問正式的後臺,會被容許跨域訪問,不安全)

#容許CORS的IP(便可跨域訪問白名單,添加多個用英文逗號隔開coreFile.java)((端口號固定爲application.properties配置的server.port))
system.accessControlAllowOrigin =120.24.253.6,gkzp.nsoft.com.cn,zhxy.nsoft.com.cn
#測試環境加上localhost,127.0.0.1   system.accessControlAllowOrigin =localhost,127.0.0.1,120.24.253.6,gkzp.nsoft.com.cn,zhxy.nsoft.com.cn

com.nsoft.gkzp.syscore.config.filter.CorsFilter.java

package com.nsoft.gkzp.syscore.config.filter;

import com.nsoft.gkzp.syscore.config.MyDefinedUtil;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;


import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(urlPatterns = "/*", filterName = "corsFilter")

public class CorsFilter implements Filter {

    final private static Logger logger = LogManager.getLogger(CorsFilter.class);

    @Autowired
    MyDefinedUtil myDefinedUtil;

    @Override
    public void destroy() {
    }

    /**
     * 此過濾器只是處理跨域問題
     * @param servletRequest
     * @param servletResponse
     * @param chain
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        String origin = request.getHeader("Origin");
        if(origin == null) {
            origin = request.getHeader("Referer");
        }
//        //容許跨域白名單
//        String[] whiteList = (myDefinedUtil.SYSTEM_ACCESSCONTROLALLOWORIGIN).split(",") ;
//        boolean isValid = false;
//        for(String ip : whiteList){//這裏我設置本地訪問(localhost,127.0.0.1)自動爲白名單裏的
//             if(origin != null && origin.equals(ip)){
//                isValid = true;
//                break;
//            }
//        }

        //容許跨域白名單
        String whiteList=myDefinedUtil.SYSTEM_ACCESSCONTROLALLOWORIGIN;
        boolean isValid = false;
         String temp    = null;
        if(origin != null){
            try {
                int a = origin.indexOf("://") + 3; temp = origin.substring(origin.indexOf("://") + 3); int b = temp.indexOf(":"); if (b > 0) { temp = temp.substring(0, b); } isValid = whiteList.contains(temp); //將origin截出ip字符串
            }catch (Exception e){ logger.error("白名單校驗出錯:"+e.getMessage(),e); }
        }
        logger.info("跨域驗證:origin="+origin+"***temp="+temp+"***isValid="+isValid);// 如爲跨域請求,下面的"Access-Control-Allow-Origin"值置爲null,就沒法訪問了。。。若是爲非跨域請求,這個爲null不會受影響,依然容許訪問
        response.setHeader("Access-Control-Allow-Origin", isValid ? origin : "null");// 容許指定域訪問跨域資源(這裏不能寫*,*表明接受全部域名訪問,如寫*則下面一行代碼無效。謹記)
        response.setHeader("Access-Control-Allow-Credentials", "true");//true表明容許客戶端攜帶cookie(此時origin值不能爲「*」,只能爲指定單一域名)
        response.setHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS, PATCH"); /// 容許瀏覽器在預檢請求成功以後發送的實際請求方法名
        response.setHeader("Access-Control-Allow-Headers", "Authorization,Origin, X-Requested-With, Content-Type, Accept,Access-Token");// 容許瀏覽器發送的請求消息頭
        //response.setHeader("Access-Control-Max-Age", "86400");            // 瀏覽器緩存預檢請求結果時間,單位:秒
        chain.doFilter(request,response);
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }


}

 

 

 

 

 

 

 

參照:

http://www.javashuo.com/article/p-nnkkqoqa-cg.html

https://blog.csdn.net/qq_17555933/article/details/92017890

相關文章
相關標籤/搜索