feat: 升级1.0.9，解决异常情况

pom.xml

@@ -13,7 +13,7 @@
 
     <groupId>group.flyfish</groupId>
     <artifactId>rest-proxy</artifactId>
-    <version>1.0.8</version>
+    <version>1.0.9</version>
 
     <properties>
         <maven.compiler.source>8</maven.compiler.source>
@@ -22,7 +22,7 @@
         <java.version>1.8</java.version>
         <commons-collection.version>4.4</commons-collection.version>
         <commons.lang.version>2.6</commons.lang.version>
-        <sdk.version>1.0.8</sdk.version>
+        <sdk.version>1.0.9</sdk.version>
     </properties>
 
     <packaging>pom</packaging>

rest-proxy-api/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>group.flyfish</groupId>
         <artifactId>rest-proxy</artifactId>
-        <version>1.0.8</version>
+        <version>1.0.9</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

rest-proxy-core/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>group.flyfish</groupId>
         <artifactId>rest-proxy</artifactId>
-        <version>1.0.8</version>
+        <version>1.0.9</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

rest-proxy-core/src/main/java/group/flyfish/rest/constants/RestConstants.java

@@ -214,4 +214,10 @@ public interface RestConstants {
             .with(TypeConstants.BYTE_ARRAY, ResponseType.BINARY)
             .build();
 
+    // 提示消息
+    String MSG_THREAD_POOL_EMPTY = "线程池未指定或为空！";
+    String MSG_IO_ERROR = "发起请求时出现异常！";
+    String MSG_UNKNOWN_HOST = "未知的请求地址！";
+    String MSG_REQUEST_ERROR = "请求接口{0}状态异常！代码：{1}";
+
 }

rest-proxy-core/src/main/java/group/flyfish/rest/core/client/DefaultRestClient.java

@@ -40,12 +40,11 @@ import static group.flyfish.rest.constants.RestConstants.DEFAULT_EXECUTOR;
  * 6. 新增单例httpClient模式，复用连接让应用更高效
  */
 @Slf4j
-final class DefaultRestClient implements RestClient {
+final class DefaultRestClient extends RestErrorHandler implements RestClient {
 
     private final HttpRequestBase request;
     private boolean async = false;
     private Consumer<HttpEntity> consumer;
-    private Consumer<RestClientException> errorConsumer;
     private ExecutorService executorService;
     private ResponseType responseType = ResponseType.NORMAL;
     private Class<?> resultClass;
@@ -85,18 +84,6 @@ final class DefaultRestClient implements RestClient {
         return this;
     }
 
-    /**
-     * 错误处理
-     *
-     * @param e 异常
-     */
-    private void handleError(RestClientException e) {
-        if (null != errorConsumer) {
-            errorConsumer.accept(e);
-        } else {
-            throw e;
-        }
-    }
 
     /**
      * 设置响应类型
@@ -155,7 +142,7 @@ final class DefaultRestClient implements RestClient {
         this.consumer = consumer;
         if (this.async) {
             if (this.executorService == null) {
-                handleError(new RestClientException("线程池未指定或为空！"));
+                handleError(RestConstants.MSG_THREAD_POOL_EMPTY);
             }
             this.executorService.submit(this::executeSafety);
         } else {
@@ -202,7 +189,7 @@ final class DefaultRestClient implements RestClient {
         try {
             execute();
         } catch (IOException e) {
-            handleError(new RestClientException(e.getMessage(), e, null));
+            handleError(RestConstants.MSG_IO_ERROR, e);
         }
     }
 
@@ -287,21 +274,14 @@ final class DefaultRestClient implements RestClient {
         log.info("【Rest Invoke】{} {}", request.getMethod(), request.getURI());
         try (CloseableHttpResponse response = clientProvider.getClient().execute(request)) {
             StatusLine statusLine = response.getStatusLine();
+            HttpEntity entity = response.getEntity();
             if (HttpStatus.valueOf(statusLine.getStatusCode()).isError()) {
-                int requestCode = statusLine.getStatusCode();
+                handleError(request.getURI(), statusLine.getStatusCode(), handleEntity(entity));
-                log.error(request.getURI() + "接口调用失败，code:" + requestCode);
-                handleError(new RestClientException("网络请求状态异常！代码：" + requestCode, null, statusLine));
             } else {
-                HttpEntity entity = response.getEntity();
+                return handleEntity(entity);
-                if (consumer != null) {
-                    consumer.accept(entity);
-                    return null;
-                }
-                return resolveResponse(entity);
             }
         } catch (UnknownHostException e) {
-            handleError(new RestClientException(e.getMessage(), e, null));
+            handleError(RestConstants.MSG_UNKNOWN_HOST, e);
-            log.error("未知的请求地址！");
         } finally {
             request.releaseConnection();
         }
@@ -318,6 +298,24 @@ final class DefaultRestClient implements RestClient {
         return RestConstants.RESPONSE_TYPE_MAP.getOrDefault(clazz.getName(), ResponseType.OBJECT);
     }
 
+    /**
+     * 处理响应体
+     *
+     * @param entity 响应体
+     * @return 结果
+     * @throws IOException 异常
+     */
+    private <T> T handleEntity(HttpEntity entity) throws IOException {
+        if (null == entity) {
+            return null;
+        }
+        if (consumer != null) {
+            consumer.accept(entity);
+            return null;
+        }
+        return resolveResponse(entity);
+    }
+
     /**
      * 解析结果
      *

rest-proxy-core/src/main/java/group/flyfish/rest/core/client/RestErrorHandler.java

@@ -0,0 +1,64 @@
+package group.flyfish.rest.core.client;
+
+import group.flyfish.rest.constants.RestConstants;
+import group.flyfish.rest.core.exception.RestClientException;
+import lombok.extern.slf4j.Slf4j;
+
+import java.net.URI;
+import java.text.MessageFormat;
+import java.util.function.Consumer;
+
+/**
+ * rest请求错误处理器
+ *
+ * @author wangyu
+ */
+@Slf4j
+public abstract class RestErrorHandler {
+
+    protected Consumer<RestClientException> errorConsumer;
+
+    /**
+     * 错误处理
+     *
+     * @param e 异常
+     */
+    private void handleError(RestClientException e) {
+        log.error(e.getMessage());
+        if (null != errorConsumer) {
+            errorConsumer.accept(e);
+        } else {
+            throw e;
+        }
+    }
+
+    /**
+     * 处理常规文本异常
+     *
+     * @param message 消息
+     */
+    protected void handleError(String message) {
+        handleError(new RestClientException(message));
+    }
+
+    /**
+     * 处理具体发生的异常
+     *
+     * @param message 信息
+     * @param cause   造成的异常
+     */
+    protected void handleError(String message, Exception cause) {
+        handleError(new RestClientException(message + cause.getMessage(), cause));
+    }
+
+    /**
+     * 处理请求异常
+     *
+     * @param status 状态码
+     * @param data   响应数据
+     */
+    protected void handleError(URI uri, int status, Object data) {
+        String message = MessageFormat.format(RestConstants.MSG_REQUEST_ERROR, uri, status);
+        handleError(new RestClientException(message, status, data));
+    }
+}

rest-proxy-core/src/main/java/group/flyfish/rest/core/exception/RestClientException.java

@@ -1,13 +1,19 @@
 package group.flyfish.rest.core.exception;
 
+import lombok.Getter;
+
 /**
  * 异常类，用于包装异常
  */
 public class RestClientException extends RuntimeException {
 
     private static final long serialVersionUID = 4741281547788724661L;
+    @Getter
     private Exception nested;
 
+    @Getter
+    private int statusCode;
+
     private Object bind;
 
     public RestClientException(String message, Exception nested) {
@@ -15,9 +21,9 @@ public class RestClientException extends RuntimeException {
         this.nested = nested;
     }
 
-    public RestClientException(String message, Exception nested, Object bind) {
+    public RestClientException(String message, int statusCode, Object bind) {
         super(message);
-        this.nested = nested;
+        this.statusCode = statusCode;
         this.bind = bind;
     }
 
@@ -29,12 +35,4 @@ public class RestClientException extends RuntimeException {
     public <T> T getBind() {
         return (T) bind;
     }
-
-    public void setBind(Object bind) {
-        this.bind = bind;
-    }
-
-    public Exception getNested() {
-        return nested;
-    }
 }