Springboot 403
了解CORS： 跨域资源共享 CORS 详解 - 阮一峰
# 1.项目未添加Security依赖
前端地址: http://localhost:9528 后端地址: http://localhost:8889
- 前端调用接口
localhost:8888/user/login - 对于非简单请求，浏览器首先会发起一个OPTIONS预检请求，询问服务器，当前网页所在的域名是否在服务器的许可名单之中，以及可以使用哪些HTTP动词和头信息字段。只有得到肯定答复，浏览器才会发出正式的XMLHttpRequest请求，否则就报错。
- 控制台:
出现了跨域情况
# 解决方案 1
在filter中添加白名单，完整filter代码⤵️
package com.futao.springmvcdemo.foundation;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.MediaType;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
/**
* @author futao
* Created on 2018/9/19-15:47.
*/
@WebFilter(filterName = "AppFilter", urlPatterns = "/*")
public class AppFilter implements Filter {
@Override
public void destroy() {
}
@Override
public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) resp;
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType(MediaType.APPLICATION_JSON_UTF8_VALUE);
ArrayList<String> allowOrigins = (ArrayList<String>) req.getServletContext().getAttribute("allowOrigins");
String origin = request.getHeader("Origin");
if (allowOrigins.contains(origin)) {
response.setHeader("Access-Control-Allow-Origin", origin);
}
// Access-Control-Max-Age
response.setHeader("Access-Control-Max-Age", "3600");
// Access-Control-Allow-Credentials
response.setHeader("Access-Control-Allow-Credentials", "true");
// Access-Control-Allow-Methods
response.setHeader("Access-Control-Allow-Methods", "PUT,POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Allow-Headers", "Content-Type");
chain.doFilter(req, resp);
}
@Override
public void init(FilterConfig config) throws ServletException {
//白名单
ArrayList<String> allowOrigins = new ArrayList<>();
allowOrigins.add("http://localhost:63343");
allowOrigins.add("http://localhost:9528");
config.getServletContext().setAttribute("allowOrigins", allowOrigins);
}
}- 再次发起请求
OK了
- 随后浏览器会自动发起原请求
# 解决方案 2
- 新建CorsConfiguration配置类，自己百度
# 2.项目添加了Security依赖
需要额外添加如下配置
package com.futao.springmvcdemo.foundation;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
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;
/**
* @author futao
* Created on 2018/11/6.
*/
@Configuration
@EnableWebSecurity
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.csrf().disable()
.authorizeRequests()
.antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
.antMatchers("/resources/**").permitAll()
.anyRequest().authenticated()
.and()
.formLogin()
.and()
.httpBasic();
}
@Override
public void configure(WebSecurity web) throws Exception {
web
.ignoring()
.antMatchers(HttpMethod.OPTIONS, "/**");
}
}如果同时进行了filter和CorsConfiguration的配置，OPTIONS请求会返回403，并且控制台提示 Itdoesnothave HTTP ok status.非常恶心。 网上没有找到相应的解释。
疑问：OPTIONS请求到达服务器后是谁做出的响应
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原始发表：2018-11-07，如有侵权请联系 cloudcommunity@tencent.com 删除
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