Spring覆盖jar包中路径映射的几种解决方案

@RestController
public class MyController {
    @GetMapping(path = "/api/user", params = "myParam")
    public String myMethod() {
        return "My implementation";
    }
}

@Component
public class PathOverrideFilter extends OncePerRequestFilter {

    // 定义需要重定向的路径映射
    private static final Map<String, String> PATH_MAPPINGS = new HashMap<String, String>(){{
        put("/api/user", "/api-new/user");
    }};

    @Override
    protected void doFilterInternal(HttpServletRequest request, 
                                  HttpServletResponse response, 
                                  FilterChain filterChain) throws ServletException, IOException {
        String requestURI = request.getRequestURI();
        String redirectPath = PATH_MAPPINGS.get(requestURI);
        // 检查是否需要重定向
        if (StringUtils.isNotBlank(redirectPath)) {
            // 创建包装请求，修改路径信息
            HttpServletRequest wrappedRequest = new HttpServletRequestWrapper(request) {
                @Override
                public String getRequestURI() {
                    return redirectPath;
                }
                
                @Override
                public String getServletPath() {
                    return redirectPath;
                }
            };
            // 继续处理链，但使用修改后的请求
            filterChain.doFilter(wrappedRequest, response);
            return;
        }
        
        // 不需要重定向的请求正常处理
        filterChain.doFilter(request, response);
    }
}

@RestController
public class NewController {
    @GetMapping("/api-new/user")
    public String myMethod() {
        // 你的新实现
        return "My new implementation";
    }
}