Merge pull request #2907 from ls9527/master_分页读取监听器支持自定义分页数

分页读取监听器支持自定义分页条数

easyexcel-core/src/main/java/com/alibaba/excel/read/listener/PageReadListener.java

@@ -27,14 +27,21 @@ public class PageReadListener<T> implements ReadListener<T> {
      */
     private final Consumer<List<T>> consumer;
 
+    private final int pageSize;
+
     public PageReadListener(Consumer<List<T>> consumer) {
+        this(consumer, BATCH_COUNT);
+    }
+
+    public PageReadListener(Consumer<List<T>> consumer,int pageSize) {
         this.consumer = consumer;
+        this.pageSize = pageSize;
     }
 
     @Override
     public void invoke(T data, AnalysisContext context) {
         cachedDataList.add(data);
-        if (cachedDataList.size() >= BATCH_COUNT) {
+        if (cachedDataList.size() >= pageSize) {
             consumer.accept(cachedDataList);
             cachedDataList = ListUtils.newArrayListWithExpectedSize(BATCH_COUNT);
         }

easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/read/ReadTest.java

@@ -52,7 +52,7 @@ public class ReadTest {
             for (DemoData demoData : dataList) {
                 log.info("读取到一条数据{}", JSON.toJSONString(demoData));
             }
-        })).sheet().doRead();
+        },3)).sheet().doRead();
 
         // 写法2：
         // 匿名内部类 不用额外写一个DemoDataListener