---初始化项目

powerjob-common/src/main/java/tech/powerjob/common/response/AskResponse.java

@@ -0,0 +1,61 @@
+package tech.powerjob.common.response;
+
+import tech.powerjob.common.PowerSerializable;
+import tech.powerjob.common.serialize.JsonUtils;
+import lombok.*;
+
+import java.nio.charset.StandardCharsets;
+
+
+/**
+ * Pattens.ask 的响应
+ *
+ * @author tjq
+ * @since 2020/3/18
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class AskResponse implements PowerSerializable {
+
+    private boolean success;
+
+    /*
+    - 使用 Object 会报错：java.lang.ClassCastException: scala.collection.immutable.HashMap cannot be cast to XXX，只能自己序列化反序列化了
+    - 嵌套类型（比如 Map<String, B>），如果B也是个复杂对象，那么反序列化后B的类型为 LinkedHashMap... 处理比较麻烦（转成JSON再转回来）
+    - 考虑到多语言通讯，data 必须使用 JSON 序列化为字节数组
+     */
+    private byte[] data;
+
+    // 错误信息
+    private String message;
+
+    public static AskResponse succeed(Object data) {
+        AskResponse r = new AskResponse();
+        r.success = true;
+        if (data != null) {
+            if (data instanceof String) {
+                r.data = ((String) data).getBytes(StandardCharsets.UTF_8);
+            } else {
+                r.data = JsonUtils.toBytes(data);
+            }
+        }
+        return r;
+    }
+
+    public static AskResponse failed(String msg) {
+        AskResponse r = new AskResponse();
+        r.success = false;
+        r.message = msg;
+        return r;
+    }
+
+    public <T> T getData(Class<T> clz) throws Exception {
+        return JsonUtils.parseObject(data, clz);
+    }
+
+    public String parseDataAsString() {
+        return new String(data, StandardCharsets.UTF_8);
+    }
+
+}