From 2e1ed51f287542c7008a92a3b3f980e870c906d0 Mon Sep 17 00:00:00 2001
From: hellozrh <455741807@qq.com>
Date: Mon, 5 Jun 2023 09:33:07 +0800
Subject: [PATCH 1/2] =?UTF-8?q?CsvWriter=E5=A6=82=E6=9E=9C=E5=BC=80?=
 =?UTF-8?q?=E5=90=AF=E4=BA=86append=3Dtrue=EF=BC=8C=E9=BB=98=E8=AE=A4?=
 =?UTF-8?q?=E8=87=AA=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

---
 .../java/cn/hutool/core/io/file/FileWriter.java  |  1 +
 .../java/cn/hutool/core/text/csv/CsvWriter.java  |  4 ++--
 .../cn/hutool/core/text/csv/CsvWriterTest.java   | 16 ++++++++++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java b/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
index f07fbd0ad..398c26707 100644
--- a/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
+++ b/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
@@ -376,6 +376,7 @@ public class FileWriter extends FileWrapper {
 	 */
 	public BufferedWriter getWriter(boolean isAppend) throws IORuntimeException {
 		try {
+
 			return new BufferedWriter(new OutputStreamWriter(new FileOutputStream(FileUtil.touch(file), isAppend), charset));
 		} catch (Exception e) {
 			throw new IORuntimeException(e);
diff --git a/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvWriter.java b/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvWriter.java
index 5dbe1f232..314249103 100755
--- a/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvWriter.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvWriter.java
@@ -130,11 +130,11 @@ 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(File file, Charset charset, boolean isAppend, 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-core/src/test/java/cn/hutool/core/text/csv/CsvWriterTest.java b/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvWriterTest.java
index ed4416209..980a33749 100755
--- a/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvWriterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/text/csv/CsvWriterTest.java
@@ -44,4 +44,20 @@ 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();
+	}
 }

From 11b854acb39af4406ef4b95e1fe42ff075289cda Mon Sep 17 00:00:00 2001
From: hellozrh <455741807@qq.com>
Date: Mon, 5 Jun 2023 09:42:53 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B8=85=E6=8E=89=E5=A4=9A=E4=BD=99?=
 =?UTF-8?q?=E7=9A=84=E7=A9=BA=E8=A1=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java b/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
index 398c26707..f07fbd0ad 100644
--- a/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
+++ b/hutool-core/src/main/java/cn/hutool/core/io/file/FileWriter.java
@@ -376,7 +376,6 @@ public class FileWriter extends FileWrapper {
 	 */
 	public BufferedWriter getWriter(boolean isAppend) throws IORuntimeException {
 		try {
-
 			return new BufferedWriter(new OutputStreamWriter(new FileOutputStream(FileUtil.touch(file), isAppend), charset));
 		} catch (Exception e) {
 			throw new IORuntimeException(e);