BUGFIX: 消息被双重转义时无法被正常解析，导致消息一直被重复消费

pom.xml

@@ -332,7 +332,12 @@
             <artifactId>easyexcel</artifactId>
             <version>3.3.2</version>
         </dependency>
-
+        <!-- JSON 转义恢复 -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-text</artifactId>
+            <version>1.10.0</version> <!-- 使用最新版本 -->
+        </dependency>
 
     </dependencies>
 

src/main/java/com/ai/da/common/RabbitMQ/GenerateConsumer.java

@@ -10,9 +10,13 @@ import com.ai.da.service.GenerateService;
 import com.ai.da.service.UserLikeGroupService;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.gson.Gson;
 import com.rabbitmq.client.Channel;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.text.StringEscapeUtils;
 import org.springframework.amqp.core.Message;
 import org.springframework.amqp.rabbit.annotation.RabbitHandler;
 import org.springframework.amqp.rabbit.annotation.RabbitListener;
@@ -23,6 +27,7 @@ import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -266,7 +271,7 @@ public class GenerateConsumer {
         log.info("============ProcessPoseTransformResult listening==========");
         long start = System.currentTimeMillis();
 
-        Map<String, String> generateResult = JSONObject.parseObject(msg.getBody(), Map.class);
+        Map<String, String> generateResult = jsonBytesToMap(msg, channel);
         log.info("PoseTransformation response : {}", generateResult);
 
         try {
@@ -311,6 +316,48 @@ public class GenerateConsumer {
 
     }
 
+    public static Map<String, String> jsonBytesToMap(Message msg, Channel channel) {
+        try {
+            // 1. byte[] -> String
+            String jsonString = new String(msg.getBody(), StandardCharsets.UTF_8).trim();
+            // 2. 处理可能的双重转义
+            if (jsonString.startsWith("\"") && jsonString.endsWith("\"")) {
+                jsonString = jsonString.substring(1, jsonString.length() - 1);
+                // 使用 Apache Commons Text， 将 JSON 字符串中的转义字符还原为原始字符
+                jsonString = StringEscapeUtils.unescapeJson(jsonString);
+            }
+            // 3. 验证 JSON 格式
+            if (!isValidJson(jsonString)) {
+                throw new IllegalArgumentException("Invalid JSON format");
+            }
+            // 4. 解析为 Map
+            ObjectMapper mapper = new ObjectMapper();
+            return mapper.readValue(jsonString, new TypeReference<Map<String, String>>() {});
+        } catch (Exception e) {
+            log.error("消息解析失败: {}", e.getMessage(), e);
+            try {
+                // 仅对不可恢复错误（如非 JSON 数据）进行 ACK
+                if (e instanceof JsonParseException || e instanceof IllegalArgumentException) {
+                    channel.basicAck(msg.getMessageProperties().getDeliveryTag(), false);
+                    log.warn("因消息格式错误，已确认并丢弃消息。原始消息为：{}", msg);
+                }
+            } catch (IOException ex) {
+                log.error("消息确认失败: {}", ex.getMessage(), ex);
+            }
+            throw new RuntimeException("Failed to parse JSON to Map", e);
+        }
+    }
+
+    // 辅助方法：验证字符串是否为合法 JSON
+    private static boolean isValidJson(String json) {
+        try {
+            new ObjectMapper().readTree(json);
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
     private void processDesignBatchResult(Message msg, Channel channel) {
         log.info("============processDesignBatchResult listening==========");
         long start = System.currentTimeMillis();