feature(cofiguration): 分页增加额外的参数

service-configuration/src/main/java/com/lanyuanxiaoyao/service/configuration/entity/PageResponse.java

@@ -1,7 +1,9 @@
 package com.lanyuanxiaoyao.service.configuration.entity;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 分页实体类
@@ -12,6 +14,7 @@ import java.util.List;
 public class PageResponse<T> {
     private List<T> data = new ArrayList<>(0);
     private Long total = 0L;
+    private Map<String, Object> metadata = new HashMap<>();
 
     public PageResponse() {
     }
@@ -22,10 +25,15 @@ public class PageResponse<T> {
     }
 
     public PageResponse(List<T> data, Long total) {
-        this.data = data;
+        this(data);
         this.total = total;
     }
 
+    public PageResponse(List<T> data, Long total, Map<String, Object> metadata) {
+        this(data, total);
+        this.metadata = metadata;
+    }
+
     public List<T> getData() {
         return data;
     }
@@ -42,11 +50,25 @@ public class PageResponse<T> {
         this.total = total;
     }
 
+    public Map<String, Object> getMetadata() {
+        return metadata;
+    }
+
+    public void setMetadata(Map<String, Object> metadata) {
+        this.metadata = metadata;
+    }
+
+    public PageResponse<T> withMetadata(String key, Object value) {
+        this.metadata.put(key, value);
+        return this;
+    }
+
     @Override
     public String toString() {
         return "PageResponse{" +
                 "data=" + data +
                 ", total=" + total +
+                ", metadata=" + metadata +
                 '}';
     }
 }