From cdbc91f427c1281b37a17bd46b3701ba007e7235 Mon Sep 17 00:00:00 2001
From: Leo <8571049+leoluo0818@users.noreply.github.com>
Date: Sun, 21 Jul 2024 15:57:54 +0000
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=88=86=E9=A1=B5=E6=97=B6?=
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---
 .../java/com/mybatisflex/core/FlexGlobalConfig.java | 13 +++++++++++++
 .../java/com/mybatisflex/core/paginate/Page.java    |  7 ++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/FlexGlobalConfig.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/FlexGlobalConfig.java
index 4f4d8c43..6fd0c111 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/FlexGlobalConfig.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/FlexGlobalConfig.java
@@ -83,6 +83,11 @@ public class FlexGlobalConfig {
      */
     private int defaultPageSize = 10;
 
+    /**
+     * 分页查询时，默认每页显示的数据数量最大限制。
+     */
+    private int defaultMaxPageSize = Long.MAX_VALUE;
+
 
     /**
      * 默认的 Relation 注解查询深度
@@ -278,6 +283,14 @@ public class FlexGlobalConfig {
         this.defaultPageSize = defaultPageSize;
     }
 
+    public int getDefaultMaxPageSize() {
+        return defaultMaxPageSize;
+    }
+
+    public void setDefaultMaxPageSize(int defaultMaxPageSize) {
+        this.defaultMaxPageSize = defaultMaxPageSize;
+    }    
+
     public int getDefaultRelationQueryDepth() {
         return defaultRelationQueryDepth;
     }
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/paginate/Page.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/paginate/Page.java
index 0af90fa6..1ab8bb93 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/paginate/Page.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/paginate/Page.java
@@ -51,6 +51,11 @@ public class Page<T> implements Serializable {
      */
     private long pageSize = FlexGlobalConfig.getDefaultConfig().getDefaultPageSize();
 
+    /**
+     * 每页数据数量最大限制。
+     */
+    private long maxPageSize = FlexGlobalConfig.getDefaultConfig().getDefaultMaxPageSize();
+
     /**
      * 总页数。
      */
@@ -196,7 +201,7 @@ public class Page<T> implements Serializable {
         if (pageSize <= 0) {
             throw new IllegalArgumentException("pageSize must greater than 0，current value is: " + pageSize);
         }
-        this.pageSize = pageSize;
+        this.pageSize = Math.min(pageSize, maxPageSize);
         this.calcTotalPage();
     }