Question

我不知道怎么了，我到处都在线检查过，好像和我一样，但是我遇到了这个问题：

我正在请求将带有Angular拦截器的HttpClient与HttpClient一起使用的Angular应用程序设置为setHeader，因为我的Java Rest API使用JWT进行身份验证，并且在标头中需要令牌，因此它会获取并验证用户请求，因为Angular拦截器无法正常工作正确地。我在Java端将null作为令牌得到了一个错误。请帮助我。

最后，我发现它可能是春季安全性的问题，因为我调试并发现该选项请求所有过滤器，并且它没有标题，因此显示令牌并抛出异常如果选项方法请求绕过并允许，那么可能是我的问题将会解决

Spring boot安全性配置

package com.techprimers.security.jwtsecurity.config;

import com.techprimers.security.jwtsecurity.security.JwtAuthenticationEntryPoint;
import com.techprimers.security.jwtsecurity.security.JwtAuthenticationProvider;
import com.techprimers.security.jwtsecurity.security.JwtAuthenticationTokenFilter;
import com.techprimers.security.jwtsecurity.security.JwtSuccessHandler;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import java.util.Collections;

@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableWebSecurity
@Configuration
public class JwtSecurityConfig extends WebSecurityConfigurerAdapter {


    @Autowired
    private JwtAuthenticationProvider authenticationProvider;
    @Autowired
    private JwtAuthenticationEntryPoint entryPoint;

    @Bean
    public AuthenticationManager authenticationManager() {
        return new ProviderManager(Collections.singletonList(authenticationProvider));
    }

    @Bean
    public JwtAuthenticationTokenFilter authenticationTokenFilter() {
        JwtAuthenticationTokenFilter filter = new JwtAuthenticationTokenFilter();
        filter.setAuthenticationManager(authenticationManager());
        filter.setAuthenticationSuccessHandler(new JwtSuccessHandler());
        return filter;
    }
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers(HttpMethod.OPTIONS, "/**");
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.csrf().disable()
                .authorizeRequests().antMatchers("**/rest/**").authenticated()
                .and()
                .exceptionHandling().authenticationEntryPoint(entryPoint)
                .and()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);

        http.addFilterBefore(authenticationTokenFilter(), UsernamePasswordAuthenticationFilter.class);
        http.headers().cacheControl();



    }
}

角度拦截器代码

import { Injectable } from '@angular/core';
import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable()
export class JwtInterceptor implements HttpInterceptor {
    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        // add authorization header with jwt token if available



            console.log("i am inside");

            request = request.clone({
                setHeaders: {
                    Accept: 'application/json',
                    Authorization: `Bearer ${localStorage.getItem('token')}`
                }
            });


        return next.handle(request);
    }
}

Angular服务

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class ServiceService {

  constructor(private http: HttpClient) { }

  api_user_url = 'http://localhost:8095';

  getAllApiUsers(): Observable<any> {
    return this.http.get(this.api_user_url + "/allUser");
  }

  setUserLogin(obj):Observable<any>{

    return this.http.post(this.api_user_url +"/login", obj);
  }
}

CallIng Mathod

public getAllUserList() {

    console.log("I am calling");

    this.service.getAllApiUsers()
      .subscribe(data => {
        this.alluser = data;
        console.log(data);

      })
  }

浏览器网络

令牌的本地存储

浏览器控制台错误消息

Spring Boot Java Console错误

Answer 1

角度拦截器看起来不错，但是在您的浏览器控制台中有CORS policy错误。您的角度应用程序在端口4200上运行，后端在8095（不同的主机）上运行。

我不知道spring-boot，但是在阅读了文档之后，您应该向后端应用程序添加一些cors策略（针对生产和开发环境而有所不同）：

更多内容，请点击此处：https://spring.io/guides/gs/rest-service-cors/

现在您的对/allUser的请求未发送...消除了CORS问题后，一切都应正常运行

Spring Security Jwt令牌在请求表单角度时允许所有选项方法

1 个答案: