From 0c3609193819e0b0066bd6c4cc128795c822a23c Mon Sep 17 00:00:00 2001
From: hellozrh <455741807@qq.com>
Date: Mon, 5 Jun 2023 09:37:11 +0800
Subject: [PATCH] =?UTF-8?q?CsvWriter=E5=A6=82=E6=9E=9C=E5=BC=80=E5=90=AF?=
 =?UTF-8?q?=E4=BA=86append=3Dtrue=EF=BC=8C=E9=BB=98=E8=AE=A4=E8=87=AA?=
 =?UTF-8?q?=E5=8A=A8=E5=BC=80=E5=90=AFendingLineBreak=3Dtrue?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../org/dromara/hutool/poi/csv/CsvWriter.java    |  4 ++--
 .../dromara/hutool/poi/csv/CsvWriterTest.java    | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/hutool-poi/src/main/java/org/dromara/hutool/poi/csv/CsvWriter.java b/hutool-poi/src/main/java/org/dromara/hutool/poi/csv/CsvWriter.java
index 73c33b7b4..476111892 100644
--- a/hutool-poi/src/main/java/org/dromara/hutool/poi/csv/CsvWriter.java
+++ b/hutool-poi/src/main/java/org/dromara/hutool/poi/csv/CsvWriter.java
@@ -137,11 +137,11 @@ public final class CsvWriter implements Closeable, Flushable, Serializable {
 	 *
 	 * @param file     CSV文件
 	 * @param charset  编码
-	 * @param isAppend 是否追加
+	 * @param isAppend 是否追加, append=true模式下，endingLineBreak自动设置为true
 	 * @param config   写出配置，null则使用默认配置
 	 */
 	public CsvWriter(final File file, final Charset charset, final boolean isAppend, final CsvWriteConfig config) {
-		this(FileUtil.getWriter(file, charset, isAppend), config);
+		this(FileUtil.getWriter(file, charset, isAppend), isAppend?(config==null?CsvWriteConfig.defaultConfig().setEndingLineBreak(true):config.setEndingLineBreak(true)):config);
 	}
 
 	/**
diff --git a/hutool-poi/src/test/java/org/dromara/hutool/poi/csv/CsvWriterTest.java b/hutool-poi/src/test/java/org/dromara/hutool/poi/csv/CsvWriterTest.java
index 5fa489f9b..6028f85b5 100644
--- a/hutool-poi/src/test/java/org/dromara/hutool/poi/csv/CsvWriterTest.java
+++ b/hutool-poi/src/test/java/org/dromara/hutool/poi/csv/CsvWriterTest.java
@@ -63,4 +63,20 @@ public class CsvWriterTest {
 		);
 		writer.close();
 	}
+
+	@Test
+	@Ignore
+	public void writeAppendTest(){
+		final CsvWriter writer = CsvUtil.getWriter(
+				FileUtil.file("d:/test/writeAppendTest.csv"),
+				CharsetUtil.CHARSET_GBK, true);
+
+		writer.writeHeaderLine("name", "gender", "address");
+		writer.writeLine("张三", "男", "XX市XX区");
+		writer.writeLine("李四", "男", "XX市XX区,01号");
+
+		writer.writeLine("张三2", "男", "XX市XX区");
+		writer.writeLine("李四2", "男", "XX市XX区,01号");
+		writer.close();
+	}
 }