From 1acf9a48021d0af1d81fdf3ed8fcf8dffd020f6b Mon Sep 17 00:00:00 2001
From: hongjli <3117313295@qq.com>
Date: 星期二, 15 四月 2025 14:20:51 +0800
Subject: [PATCH] 登录，注册，获取用户信息---接口
---
src/main/java/com/weiwojc/security/JwtAuthenticationFilter.java | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/weiwojc/security/JwtAuthenticationFilter.java b/src/main/java/com/weiwojc/security/JwtAuthenticationFilter.java
new file mode 100644
index 0000000..25783e8
--- /dev/null
+++ b/src/main/java/com/weiwojc/security/JwtAuthenticationFilter.java
@@ -0,0 +1,57 @@
+package com.weiwojc.security;
+
+import com.weiwojc.utils.JwtUtils;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+@Component
+@RequiredArgsConstructor
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+
+ private final JwtUtils jwtUtils;
+
+ @Override
+ protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
+ throws ServletException, IOException {
+
+ String token = request.getHeader("token");
+
+ if (token == null || token.isEmpty()) {
+ filterChain.doFilter(request, response);
+ return;
+ }
+
+ if (!jwtUtils.validateToken(token)) {
+ filterChain.doFilter(request, response);
+ return;
+ }
+
+ String username = jwtUtils.getUsernameFromToken(token);
+ Long userId = jwtUtils.getUserIdFromToken(token);
+
+ if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
+ UserDetails userDetails = new JwtUserDetails(userId, username);
+
+ UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(
+ userDetails, null, new ArrayList<>());
+
+ authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+
+ SecurityContextHolder.getContext().setAuthentication(authentication);
+ }
+
+ filterChain.doFilter(request, response);
+ }
+}
\ No newline at end of file
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