后台管理接口修复 后端BUG修复

backend-java/src/main/java/com/nanri/aiimage/config/InstanceMetadata.java

@@ -1,21 +1,38 @@
 package com.nanri.aiimage.config;
 
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
 import java.net.InetAddress;
 
+@Slf4j
 @Component
 public class InstanceMetadata {
 
     private final String instanceId;
     private final String hostname;
+    private final String source;
+    private final boolean stable;
 
     public InstanceMetadata(@Value("${aiimage.instance-id:}") String configuredInstanceId) {
         this.hostname = resolveHostname();
-        this.instanceId = configuredInstanceId == null || configuredInstanceId.isBlank()
-                ? this.hostname
-                : configuredInstanceId.trim();
+        String normalizedConfiguredInstanceId = configuredInstanceId == null ? "" : configuredInstanceId.trim();
+        if (!normalizedConfiguredInstanceId.isBlank()) {
+            this.instanceId = normalizedConfiguredInstanceId;
+            this.source = "configured";
+            this.stable = true;
+            log.info("[instance] resolved instanceId={} source={} hostname={} continuityRisk=LOW",
+                    this.instanceId, this.source, this.hostname);
+        } else {
+            this.instanceId = this.hostname;
+            this.source = detectFallbackSource(this.hostname);
+            this.stable = false;
+            log.warn("[instance] aiimage.instance-id is not configured, falling back to {}={} as instanceId. "
+                            + "This may change after restart/redeploy and break task owner continuity. "
+                            + "Set AIIMAGE_INSTANCE_ID in 1Panel/Docker env, or set -Daiimage.instance-id=<stable-id> in IDEA/local startup.",
+                    this.source, this.hostname);
+        }
     }
 
     public String getInstanceId() {
@@ -26,6 +43,14 @@ public class InstanceMetadata {
         return hostname;
     }
 
+    public String getSource() {
+        return source;
+    }
+
+    public boolean isStable() {
+        return stable;
+    }
+
     private static String resolveHostname() {
         try {
             return InetAddress.getLocalHost().getHostName();
@@ -34,4 +59,12 @@ public class InstanceMetadata {
             return (envHostname == null || envHostname.isBlank()) ? "unknown-host" : envHostname;
         }
     }
+
+    private static String detectFallbackSource(String hostname) {
+        String envHostname = System.getenv("HOSTNAME");
+        if (envHostname != null && !envHostname.isBlank() && envHostname.equalsIgnoreCase(hostname)) {
+            return "env.HOSTNAME";
+        }
+        return "os.hostname";
+    }
 }

backend-java/src/main/java/com/nanri/aiimage/config/RequestTraceFilter.java

@@ -43,14 +43,18 @@ public class RequestTraceFilter extends OncePerRequestFilter {
 
         response.setHeader("X-AIIMAGE-Instance", instanceMetadata.getInstanceId());
         response.setHeader("X-AIIMAGE-Host", instanceMetadata.getHostname());
+        response.setHeader("X-AIIMAGE-Instance-Source", instanceMetadata.getSource());
+        response.setHeader("X-AIIMAGE-Instance-Stable", String.valueOf(instanceMetadata.isStable()));
 
         try {
             filterChain.doFilter(request, response);
         } finally {
             long costMs = System.currentTimeMillis() - start;
             log.info(
-                    "request-trace instance={} host={} method={} uri={} status={} remote={} forwardedHost={} forwardedProto={} forwardedPort={} requestId={} userAgent={} costMs={}",
+                    "request-trace instance={} source={} stable={} host={} method={} uri={} status={} remote={} forwardedHost={} forwardedProto={} forwardedPort={} requestId={} userAgent={} costMs={}",
                     instanceMetadata.getInstanceId(),
+                    instanceMetadata.getSource(),
+                    instanceMetadata.isStable(),
                     instanceMetadata.getHostname(),
                     request.getMethod(),
                     request.getRequestURI(),

backend-java/src/main/java/com/nanri/aiimage/config/StorageProperties.java

@@ -3,6 +3,8 @@ package com.nanri.aiimage.config;
 import lombok.Data;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 
+import java.nio.file.Path;
+
 @Data
 @ConfigurationProperties(prefix = "aiimage.storage")
 public class StorageProperties {
@@ -12,4 +14,25 @@ public class StorageProperties {
     private long sourceRetentionHours = 24;
     private long resultRetentionHours = 24;
     private long transientPayloadRetentionHours = 72;
+
+    public String getLocalTempDir() {
+        String configured = localTempDir == null ? "" : localTempDir.trim();
+        if (configured.isBlank()) {
+            configured = "./data/tmp";
+        }
+        try {
+            Path raw = Path.of(configured);
+            if (raw.isAbsolute()) {
+                return raw.normalize().toString();
+            }
+        } catch (Exception ignored) {
+            // Fall through to resolve against a stable base directory.
+        }
+
+        String userDir = System.getProperty("user.dir");
+        if (userDir == null || userDir.isBlank()) {
+            userDir = System.getProperty("java.io.tmpdir", ".");
+        }
+        return Path.of(userDir).resolve(configured).normalize().toString();
+    }
 }