enjoy 4.4 release ^_^

src/main/java/com/jfinal/template/io/ByteWriter.java

@@ -50,15 +50,17 @@ public class ByteWriter extends Writer {
 	}
 	
 	public void write(String str, int offset, int len) throws IOException {
-		while (len > chars.length) {
-			write(str, offset, chars.length);
-			offset += chars.length;
-			len -= chars.length;
+		int size, byteLen;
+		while (len > 0) {
+			size = (len > chars.length ? chars.length : len);
+			
+			str.getChars(offset, offset + size, chars, 0);
+			byteLen = encoder.encode(chars, 0, size, bytes);
+			out.write(bytes, 0, byteLen);
+			
+			offset += size;
+			len -= size;
 		}
-		
-		str.getChars(offset, offset + len, chars, 0);
-		int byteLen = encoder.encode(chars, 0, len, bytes);
-		out.write(bytes, 0, byteLen);
 	}
 	
 	public void write(String str) throws IOException {
@@ -66,15 +68,17 @@ public class ByteWriter extends Writer {
 	}
 	
 	public void write(StringBuilder stringBuilder, int offset, int len) throws IOException {
-		while (len > chars.length) {
-			write(stringBuilder, offset, chars.length);
-			offset += chars.length;
-			len -= chars.length;
+		int size, byteLen;
+		while (len > 0) {
+			size = (len > chars.length ? chars.length : len);
+			
+			stringBuilder.getChars(offset, offset + size, chars, 0);
+			byteLen = encoder.encode(chars, 0, size, bytes);
+			out.write(bytes, 0, byteLen);
+			
+			offset += size;
+			len -= size;
 		}
-		
-		stringBuilder.getChars(offset, offset + len, chars, 0);
-		int byteLen = encoder.encode(chars, 0, len, bytes);
-		out.write(bytes, 0, byteLen);
 	}
 	
 	public void write(StringBuilder stringBuilder) throws IOException {

src/main/java/com/jfinal/template/io/CharWriter.java

@@ -44,14 +44,16 @@ public class CharWriter extends Writer {
 	}
 	
 	public void write(String str, int offset, int len) throws IOException {
-		while (len > chars.length) {
-			write(str, offset, chars.length);
-			offset += chars.length;
-			len -= chars.length;
+		int size;
+		while (len > 0) {
+			size = (len > chars.length ? chars.length : len);
+			
+			str.getChars(offset, offset + size, chars, 0);
+			out.write(chars, 0, size);
+			
+			offset += size;
+			len -= size;
 		}
-		
-		str.getChars(offset, offset + len, chars, 0);
-		out.write(chars, 0, len);
 	}
 	
 	public void write(String str) throws IOException {
@@ -59,14 +61,16 @@ public class CharWriter extends Writer {
 	}
 	
 	public void write(StringBuilder stringBuilder, int offset, int len) throws IOException {
-		while (len > chars.length) {
-			write(stringBuilder, offset, chars.length);
-			offset += chars.length;
-			len -= chars.length;
+		int size;
+		while (len > 0) {
+			size = (len > chars.length ? chars.length : len);
+			
+			stringBuilder.getChars(offset, offset + size, chars, 0);
+			out.write(chars, 0, size);
+			
+			offset += size;
+			len -= size;
 		}
-		
-		stringBuilder.getChars(offset, offset + len, chars, 0);
-		out.write(chars, 0, len);
 	}
 	
 	public void write(StringBuilder stringBuilder) throws IOException {

src/main/java/com/jfinal/template/io/DateFormats.java

@@ -25,7 +25,7 @@ import java.util.Map;
  */
 public class DateFormats {
 	
-	private Map<String, SimpleDateFormat> map = new HashMap<String, SimpleDateFormat>();
+	private Map<String, SimpleDateFormat> map = new HashMap<String, SimpleDateFormat>(16, 0.25F);
 	
 	public SimpleDateFormat getDateFormat(String datePattern) {
 		SimpleDateFormat ret = map.get(datePattern);

src/main/java/com/jfinal/template/io/JdkEncoderFactory.java

@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jfinal.template.io;
+
+/**
+ * JdkEncoderFactory
+ * 
+ * 支持 utf8mb4，支持 emoji 表情字符，支持各种罕见字符编码
+ * 
+ * <pre>
+ * 配置方法：
+ * engine.setToJdkEncoderFactory();
+ * </pre>
+ */
+public class JdkEncoderFactory extends EncoderFactory {
+	
+	@Override
+	public Encoder getEncoder() {
+		return new JdkEncoder(charset);
+	}
+}
+
+
+

src/main/java/com/jfinal/template/io/Utf8Encoder.java

@@ -16,7 +16,7 @@
 
 package com.jfinal.template.io;
 
-import java.nio.charset.MalformedInputException;
+// import java.nio.charset.MalformedInputException;
 
 /**
  * Utf8Encoder
@@ -62,12 +62,16 @@ public class Utf8Encoder extends Encoder {
                         if (Character.isLowSurrogate(d)) {
                             uc = Character.toCodePoint(c, d);
                         } else {
-                            throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
+                            // throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
+                            bytes[dp++] = (byte) '?';
+                            continue;
                         }
                     }
                 } else {
                     if (Character.isLowSurrogate(c)) {
-                        throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
+                        // throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
+                        bytes[dp++] = (byte) '?';
+                        continue;
                     } else {
                         uc = c;
                     }