From 255c1d945c53f12b34b1416e20cceb94e4c5f549 Mon Sep 17 00:00:00 2001
From: Redkale <22250530@qq.com>
Date: Mon, 29 Jan 2018 13:56:06 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=A8=A1=E6=9D=BF=E5=BC=95?=
 =?UTF-8?q?=E6=93=8E=E8=A7=84=E8=8C=83API?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/META-INF/application-template.xml         |   8 +-
 src/org/redkale/asm/ClassReader.java          |   4 +-
 src/org/redkale/asm/Label.java                |   3 +-
 src/org/redkale/asm/TypeReference.java        | 427 ++++++++++++++++++
 src/org/redkale/asm/asm.txt                   |   1 +
 src/org/redkale/net/http/HttpContext.java     |  10 +
 .../redkale/net/http/HttpPrepareServlet.java  |  68 ++-
 src/org/redkale/net/http/HttpResponse.java    |  28 +-
 src/org/redkale/net/http/HttpScope.java       |  84 ++++
 .../redkale/net/http/HttpTemplateEngine.java  |  24 +
 10 files changed, 627 insertions(+), 30 deletions(-)
 create mode 100644 src/org/redkale/asm/TypeReference.java
 create mode 100644 src/org/redkale/net/http/HttpScope.java
 create mode 100644 src/org/redkale/net/http/HttpTemplateEngine.java

diff --git a/src/META-INF/application-template.xml b/src/META-INF/application-template.xml
index ac69a92aa..74a832e63 100644
--- a/src/META-INF/application-template.xml
+++ b/src/META-INF/application-template.xml
@@ -231,7 +231,13 @@
             <setheader name="Access-Control-Allow-Credentials" value="true"/>
             <options auto="true" />
         </response>
-            
+        <!-- 
+           【节点在<server>中唯一】
+           当Server为HTTP协议时，template-engine才有效. 指定模板引擎的实现类, 没有配置则无法使用HttpTemplate功能
+           value: 模板引擎的实现类, 必须是org.redkale.net.http.HttpTemplateEngine的子类
+        -->
+        <template-engine value="org.redkalex.htel.XXXHttpTemplateEngine">
+        </template-engine>
         <!-- 
            【节点在<server>中唯一】
            当Server为HTTP协议时，ResourceServlet才有效. 默认存在一个有默认属性的resource-servlet节点
diff --git a/src/org/redkale/asm/ClassReader.java b/src/org/redkale/asm/ClassReader.java
index 51fbafac8..a608c344c 100644
--- a/src/org/redkale/asm/ClassReader.java
+++ b/src/org/redkale/asm/ClassReader.java
@@ -2493,7 +2493,7 @@ public class ClassReader {
     /**
      * Reads a CONSTANT_Module_info item in {@code b}. This method is intended
      * for {@link Attribute} sub classes, and is normally not needed by class
-     * generators or adapters.</i>
+     * generators or adapters.
      *
      * @param  index
      *         the start index of an unsigned short value in {@link #b b},
@@ -2510,7 +2510,7 @@ public class ClassReader {
     /**
      * Reads a CONSTANT_Package_info item in {@code b}.  This method is
      * intended for {@link Attribute} sub slasses, and is normally not needed
-     * by class generators or adapters.</i>
+     * by class generators or adapters.
      *
      * @param  index
      *         the start index of an unsigned short value in {@link #b b},
diff --git a/src/org/redkale/asm/Label.java b/src/org/redkale/asm/Label.java
index dce6b85b0..61f59deba 100644
--- a/src/org/redkale/asm/Label.java
+++ b/src/org/redkale/asm/Label.java
@@ -139,8 +139,7 @@ public class Label {
     /**
      * Field used to associate user information to a label. Warning: this field
      * is used by the ASM tree package. In order to use it with the ASM tree
-     * package you must override the
-     * {@link org.redkale.asm.tree.MethodNode#getLabelNode} method.
+     * package you must override the method.
      */
     public Object info;
 
diff --git a/src/org/redkale/asm/TypeReference.java b/src/org/redkale/asm/TypeReference.java
new file mode 100644
index 000000000..83bcfadb4
--- /dev/null
+++ b/src/org/redkale/asm/TypeReference.java
@@ -0,0 +1,427 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.asm;
+
+/**
+ * A reference to a type appearing in a class, field or method declaration, or
+ * on an instruction. Such a reference designates the part of the class where
+ * the referenced type is appearing (e.g. an 'extends', 'implements' or 'throws'
+ * clause, a 'new' instruction, a 'catch' clause, a type cast, a local variable
+ * declaration, etc).
+ *
+ * @author Eric Bruneton
+ */
+public class TypeReference {
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * class. See {@link #getSort getSort}.
+     */
+    public final static int CLASS_TYPE_PARAMETER = 0x00;
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * method. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_TYPE_PARAMETER = 0x01;
+
+    /**
+     * The sort of type references that target the super class of a class or one
+     * of the interfaces it implements. See {@link #getSort getSort}.
+     */
+    public final static int CLASS_EXTENDS = 0x10;
+
+    /**
+     * The sort of type references that target a bound of a type parameter of a
+     * generic class. See {@link #getSort getSort}.
+     */
+    public final static int CLASS_TYPE_PARAMETER_BOUND = 0x11;
+
+    /**
+     * The sort of type references that target a bound of a type parameter of a
+     * generic method. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_TYPE_PARAMETER_BOUND = 0x12;
+
+    /**
+     * The sort of type references that target the type of a field. See
+     * {@link #getSort getSort}.
+     */
+    public final static int FIELD = 0x13;
+
+    /**
+     * The sort of type references that target the return type of a method. See
+     * {@link #getSort getSort}.
+     */
+    public final static int METHOD_RETURN = 0x14;
+
+    /**
+     * The sort of type references that target the receiver type of a method.
+     * See {@link #getSort getSort}.
+     */
+    public final static int METHOD_RECEIVER = 0x15;
+
+    /**
+     * The sort of type references that target the type of a formal parameter of
+     * a method. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_FORMAL_PARAMETER = 0x16;
+
+    /**
+     * The sort of type references that target the type of an exception declared
+     * in the throws clause of a method. See {@link #getSort getSort}.
+     */
+    public final static int THROWS = 0x17;
+
+    /**
+     * The sort of type references that target the type of a local variable in a
+     * method. See {@link #getSort getSort}.
+     */
+    public final static int LOCAL_VARIABLE = 0x40;
+
+    /**
+     * The sort of type references that target the type of a resource variable
+     * in a method. See {@link #getSort getSort}.
+     */
+    public final static int RESOURCE_VARIABLE = 0x41;
+
+    /**
+     * The sort of type references that target the type of the exception of a
+     * 'catch' clause in a method. See {@link #getSort getSort}.
+     */
+    public final static int EXCEPTION_PARAMETER = 0x42;
+
+    /**
+     * The sort of type references that target the type declared in an
+     * 'instanceof' instruction. See {@link #getSort getSort}.
+     */
+    public final static int INSTANCEOF = 0x43;
+
+    /**
+     * The sort of type references that target the type of the object created by
+     * a 'new' instruction. See {@link #getSort getSort}.
+     */
+    public final static int NEW = 0x44;
+
+    /**
+     * The sort of type references that target the receiver type of a
+     * constructor reference. See {@link #getSort getSort}.
+     */
+    public final static int CONSTRUCTOR_REFERENCE = 0x45;
+
+    /**
+     * The sort of type references that target the receiver type of a method
+     * reference. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_REFERENCE = 0x46;
+
+    /**
+     * The sort of type references that target the type declared in an explicit
+     * or implicit cast instruction. See {@link #getSort getSort}.
+     */
+    public final static int CAST = 0x47;
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * constructor in a constructor call. See {@link #getSort getSort}.
+     */
+    public final static int CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT = 0x48;
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * method in a method call. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_INVOCATION_TYPE_ARGUMENT = 0x49;
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * constructor in a constructor reference. See {@link #getSort getSort}.
+     */
+    public final static int CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT = 0x4A;
+
+    /**
+     * The sort of type references that target a type parameter of a generic
+     * method in a method reference. See {@link #getSort getSort}.
+     */
+    public final static int METHOD_REFERENCE_TYPE_ARGUMENT = 0x4B;
+
+    /**
+     * The type reference value in Java class file format.
+     */
+    private int value;
+
+    /**
+     * Creates a new TypeReference.
+     *
+     * @param typeRef
+     *            the int encoded value of the type reference, as received in a
+     *            visit method related to type annotations, like
+     *            visitTypeAnnotation.
+     */
+    public TypeReference(int typeRef) {
+        this.value = typeRef;
+    }
+
+    /**
+     * Returns a type reference of the given sort.
+     *
+     * @param sort
+     *            {@link #FIELD FIELD}, {@link #METHOD_RETURN METHOD_RETURN},
+     *            {@link #METHOD_RECEIVER METHOD_RECEIVER},
+     *            {@link #LOCAL_VARIABLE LOCAL_VARIABLE},
+     *            {@link #RESOURCE_VARIABLE RESOURCE_VARIABLE},
+     *            {@link #INSTANCEOF INSTANCEOF}, {@link #NEW NEW},
+     *            {@link #CONSTRUCTOR_REFERENCE CONSTRUCTOR_REFERENCE}, or
+     *            {@link #METHOD_REFERENCE METHOD_REFERENCE}.
+     * @return a type reference of the given sort.
+     */
+    public static TypeReference newTypeReference(int sort) {
+        return new TypeReference(sort << 24);
+    }
+
+    /**
+     * Returns a reference to a type parameter of a generic class or method.
+     *
+     * @param sort
+     *            {@link #CLASS_TYPE_PARAMETER CLASS_TYPE_PARAMETER} or
+     *            {@link #METHOD_TYPE_PARAMETER METHOD_TYPE_PARAMETER}.
+     * @param paramIndex
+     *            the type parameter index.
+     * @return a reference to the given generic class or method type parameter.
+     */
+    public static TypeReference newTypeParameterReference(int sort,
+            int paramIndex) {
+        return new TypeReference((sort << 24) | (paramIndex << 16));
+    }
+
+    /**
+     * Returns a reference to a type parameter bound of a generic class or
+     * method.
+     *
+     * @param sort
+     *            {@link #CLASS_TYPE_PARAMETER CLASS_TYPE_PARAMETER} or
+     *            {@link #METHOD_TYPE_PARAMETER METHOD_TYPE_PARAMETER}.
+     * @param paramIndex
+     *            the type parameter index.
+     * @param boundIndex
+     *            the type bound index within the above type parameters.
+     * @return a reference to the given generic class or method type parameter
+     *         bound.
+     */
+    public static TypeReference newTypeParameterBoundReference(int sort,
+            int paramIndex, int boundIndex) {
+        return new TypeReference((sort << 24) | (paramIndex << 16)
+                | (boundIndex << 8));
+    }
+
+    /**
+     * Returns a reference to the super class or to an interface of the
+     * 'implements' clause of a class.
+     *
+     * @param itfIndex
+     *            the index of an interface in the 'implements' clause of a
+     *            class, or -1 to reference the super class of the class.
+     * @return a reference to the given super type of a class.
+     */
+    public static TypeReference newSuperTypeReference(int itfIndex) {
+        itfIndex &= 0xFFFF;
+        return new TypeReference((CLASS_EXTENDS << 24) | (itfIndex << 8));
+    }
+
+    /**
+     * Returns a reference to the type of a formal parameter of a method.
+     *
+     * @param paramIndex
+     *            the formal parameter index.
+     *
+     * @return a reference to the type of the given method formal parameter.
+     */
+    public static TypeReference newFormalParameterReference(int paramIndex) {
+        return new TypeReference((METHOD_FORMAL_PARAMETER << 24)
+                | (paramIndex << 16));
+    }
+
+    /**
+     * Returns a reference to the type of an exception, in a 'throws' clause of
+     * a method.
+     *
+     * @param exceptionIndex
+     *            the index of an exception in a 'throws' clause of a method.
+     *
+     * @return a reference to the type of the given exception.
+     */
+    public static TypeReference newExceptionReference(int exceptionIndex) {
+        return new TypeReference((THROWS << 24) | (exceptionIndex << 8));
+    }
+
+    /**
+     * Returns a reference to the type of the exception declared in a 'catch'
+     * clause of a method.
+     *
+     * @param tryCatchBlockIndex
+     *            the index of a try catch block (using the order in which they
+     *            are visited with visitTryCatchBlock).
+     *
+     * @return a reference to the type of the given exception.
+     */
+    public static TypeReference newTryCatchReference(int tryCatchBlockIndex) {
+        return new TypeReference((EXCEPTION_PARAMETER << 24)
+                | (tryCatchBlockIndex << 8));
+    }
+
+    /**
+     * Returns a reference to the type of a type argument in a constructor or
+     * method call or reference.
+     *
+     * @param sort
+     *            {@link #CAST CAST},
+     *            {@link #CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
+     *            CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT},
+     *            {@link #METHOD_INVOCATION_TYPE_ARGUMENT
+     *            METHOD_INVOCATION_TYPE_ARGUMENT},
+     *            {@link #CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
+     *            CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT}, or
+     *            {@link #METHOD_REFERENCE_TYPE_ARGUMENT
+     *            METHOD_REFERENCE_TYPE_ARGUMENT}.
+     * @param argIndex
+     *            the type argument index.
+     *
+     * @return a reference to the type of the given type argument.
+     */
+    public static TypeReference newTypeArgumentReference(int sort, int argIndex) {
+        return new TypeReference((sort << 24) | argIndex);
+    }
+
+    /**
+     * Returns the sort of this type reference.
+     *
+     * @return {@link #CLASS_TYPE_PARAMETER CLASS_TYPE_PARAMETER},
+     *         {@link #METHOD_TYPE_PARAMETER METHOD_TYPE_PARAMETER},
+     *         {@link #CLASS_EXTENDS CLASS_EXTENDS},
+     *         {@link #CLASS_TYPE_PARAMETER_BOUND CLASS_TYPE_PARAMETER_BOUND},
+     *         {@link #METHOD_TYPE_PARAMETER_BOUND METHOD_TYPE_PARAMETER_BOUND},
+     *         {@link #FIELD FIELD}, {@link #METHOD_RETURN METHOD_RETURN},
+     *         {@link #METHOD_RECEIVER METHOD_RECEIVER},
+     *         {@link #METHOD_FORMAL_PARAMETER METHOD_FORMAL_PARAMETER},
+     *         {@link #THROWS THROWS}, {@link #LOCAL_VARIABLE LOCAL_VARIABLE},
+     *         {@link #RESOURCE_VARIABLE RESOURCE_VARIABLE},
+     *         {@link #EXCEPTION_PARAMETER EXCEPTION_PARAMETER},
+     *         {@link #INSTANCEOF INSTANCEOF}, {@link #NEW NEW},
+     *         {@link #CONSTRUCTOR_REFERENCE CONSTRUCTOR_REFERENCE},
+     *         {@link #METHOD_REFERENCE METHOD_REFERENCE}, {@link #CAST CAST},
+     *         {@link #CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
+     *         CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT},
+     *         {@link #METHOD_INVOCATION_TYPE_ARGUMENT
+     *         METHOD_INVOCATION_TYPE_ARGUMENT},
+     *         {@link #CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
+     *         CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT}, or
+     *         {@link #METHOD_REFERENCE_TYPE_ARGUMENT
+     *         METHOD_REFERENCE_TYPE_ARGUMENT}.
+     */
+    public int getSort() {
+        return value >>> 24;
+    }
+
+    /**
+     * Returns the index of the type parameter referenced by this type
+     * reference. This method must only be used for type references whose sort
+     * is {@link #CLASS_TYPE_PARAMETER CLASS_TYPE_PARAMETER},
+     * {@link #METHOD_TYPE_PARAMETER METHOD_TYPE_PARAMETER},
+     * {@link #CLASS_TYPE_PARAMETER_BOUND CLASS_TYPE_PARAMETER_BOUND} or
+     * {@link #METHOD_TYPE_PARAMETER_BOUND METHOD_TYPE_PARAMETER_BOUND}.
+     *
+     * @return a type parameter index.
+     */
+    public int getTypeParameterIndex() {
+        return (value & 0x00FF0000) >> 16;
+    }
+
+    /**
+     * Returns the index of the type parameter bound, within the type parameter
+     * {@link #getTypeParameterIndex}, referenced by this type reference. This
+     * method must only be used for type references whose sort is
+     * {@link #CLASS_TYPE_PARAMETER_BOUND CLASS_TYPE_PARAMETER_BOUND} or
+     * {@link #METHOD_TYPE_PARAMETER_BOUND METHOD_TYPE_PARAMETER_BOUND}.
+     *
+     * @return a type parameter bound index.
+     */
+    public int getTypeParameterBoundIndex() {
+        return (value & 0x0000FF00) >> 8;
+    }
+
+    /**
+     * Returns the index of the "super type" of a class that is referenced by
+     * this type reference. This method must only be used for type references
+     * whose sort is {@link #CLASS_EXTENDS CLASS_EXTENDS}.
+     *
+     * @return the index of an interface in the 'implements' clause of a class,
+     *         or -1 if this type reference references the type of the super
+     *         class.
+     */
+    public int getSuperTypeIndex() {
+        return (short) ((value & 0x00FFFF00) >> 8);
+    }
+
+    /**
+     * Returns the index of the formal parameter whose type is referenced by
+     * this type reference. This method must only be used for type references
+     * whose sort is {@link #METHOD_FORMAL_PARAMETER METHOD_FORMAL_PARAMETER}.
+     *
+     * @return a formal parameter index.
+     */
+    public int getFormalParameterIndex() {
+        return (value & 0x00FF0000) >> 16;
+    }
+
+    /**
+     * Returns the index of the exception, in a 'throws' clause of a method,
+     * whose type is referenced by this type reference. This method must only be
+     * used for type references whose sort is {@link #THROWS THROWS}.
+     *
+     * @return the index of an exception in the 'throws' clause of a method.
+     */
+    public int getExceptionIndex() {
+        return (value & 0x00FFFF00) >> 8;
+    }
+
+    /**
+     * Returns the index of the try catch block (using the order in which they
+     * are visited with visitTryCatchBlock), whose 'catch' type is referenced by
+     * this type reference. This method must only be used for type references
+     * whose sort is {@link #EXCEPTION_PARAMETER EXCEPTION_PARAMETER} .
+     *
+     * @return the index of an exception in the 'throws' clause of a method.
+     */
+    public int getTryCatchBlockIndex() {
+        return (value & 0x00FFFF00) >> 8;
+    }
+
+    /**
+     * Returns the index of the type argument referenced by this type reference.
+     * This method must only be used for type references whose sort is
+     * {@link #CAST CAST}, {@link #CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
+     * CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT},
+     * {@link #METHOD_INVOCATION_TYPE_ARGUMENT METHOD_INVOCATION_TYPE_ARGUMENT},
+     * {@link #CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
+     * CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT}, or
+     * {@link #METHOD_REFERENCE_TYPE_ARGUMENT METHOD_REFERENCE_TYPE_ARGUMENT}.
+     *
+     * @return a type parameter index.
+     */
+    public int getTypeArgumentIndex() {
+        return value & 0xFF;
+    }
+
+    /**
+     * Returns the int encoded value of this type reference, suitable for use in
+     * visit methods related to type annotations, like visitTypeAnnotation.
+     *
+     * @return the int encoded value of this type reference.
+     */
+    public int getValue() {
+        return value;
+    }
+}
diff --git a/src/org/redkale/asm/asm.txt b/src/org/redkale/asm/asm.txt
index b23c5feca..7719a4d13 100644
--- a/src/org/redkale/asm/asm.txt
+++ b/src/org/redkale/asm/asm.txt
@@ -24,3 +24,4 @@ ModuleWriter.java
 Opcodes.java
 Type.java
 TypePath.java
+TypeReference.java
diff --git a/src/org/redkale/net/http/HttpContext.java b/src/org/redkale/net/http/HttpContext.java
index 404d7bd5e..c2207de27 100644
--- a/src/org/redkale/net/http/HttpContext.java
+++ b/src/org/redkale/net/http/HttpContext.java
@@ -31,6 +31,8 @@ public class HttpContext extends Context {
 
     protected final ConcurrentHashMap<Class, Creator> asyncHandlerCreators = new ConcurrentHashMap<>();
 
+    protected HttpTemplateEngine templateEngine;
+
     public HttpContext(long serverStartTime, Logger logger, ThreadPoolExecutor executor, int bufferCapacity, ObjectPool<ByteBuffer> bufferPool,
         ObjectPool<Response> responsePool, int maxbody, Charset charset, InetSocketAddress address, PrepareServlet prepare,
         int readTimeoutSecond, int writeTimeoutSecond) {
@@ -40,6 +42,14 @@ public class HttpContext extends Context {
         random.setSeed(Math.abs(System.nanoTime()));
     }
 
+    protected void setTemplateEngine(HttpTemplateEngine engine) {
+        this.templateEngine = engine;
+    }
+
+    public HttpTemplateEngine getTemplateEngine() {
+        return templateEngine;
+    }
+
     protected String createSessionid() {
         byte[] bytes = new byte[16];
         random.nextBytes(bytes);
diff --git a/src/org/redkale/net/http/HttpPrepareServlet.java b/src/org/redkale/net/http/HttpPrepareServlet.java
index 4f9e538fb..8199b5ec5 100644
--- a/src/org/redkale/net/http/HttpPrepareServlet.java
+++ b/src/org/redkale/net/http/HttpPrepareServlet.java
@@ -31,6 +31,8 @@ public class HttpPrepareServlet extends PrepareServlet<String, HttpContext, Http
 
     protected HttpServlet resourceHttpServlet = new HttpResourceServlet();
 
+    protected HttpTemplateEngine templateEngine = null;
+
     protected MappingEntry[] regArray = null; //regArray 包含 regWsArray
 
     protected MappingEntry[] regWsArray = null;
@@ -203,31 +205,47 @@ public class HttpPrepareServlet extends PrepareServlet<String, HttpContext, Http
             s.preInit(context, getServletConf(s));
             s.init(context, getServletConf(s));
         });
-        AnyValue resConfig = config.getAnyValue("resource-servlet");
-        if ((resConfig instanceof DefaultAnyValue) && resConfig.getValue("webroot", "").isEmpty()) {
-            ((DefaultAnyValue) resConfig).addValue("webroot", config.getValue("root"));
+        { //设置ResourceServlet
+            AnyValue resConfig = config.getAnyValue("resource-servlet");
+            if ((resConfig instanceof DefaultAnyValue) && resConfig.getValue("webroot", "").isEmpty()) {
+                ((DefaultAnyValue) resConfig).addValue("webroot", config.getValue("root"));
+            }
+            if (resConfig == null) { //主要用于嵌入式的HttpServer初始化
+                DefaultAnyValue dresConfig = new DefaultAnyValue();
+                dresConfig.addValue("webroot", config.getValue("root"));
+                dresConfig.addValue("ranges", config.getValue("ranges"));
+                dresConfig.addValue("cache", config.getAnyValue("cache"));
+                AnyValue[] rewrites = config.getAnyValues("rewrite");
+                if (rewrites != null) {
+                    for (AnyValue rewrite : rewrites) {
+                        dresConfig.addValue("rewrite", rewrite);
+                    }
+                }
+                resConfig = dresConfig;
+            }
+            String resServlet = resConfig.getValue("servlet", HttpResourceServlet.class.getName());
+            try {
+                this.resourceHttpServlet = (HttpServlet) Thread.currentThread().getContextClassLoader().loadClass(resServlet).newInstance();
+            } catch (Throwable e) {
+                this.resourceHttpServlet = new HttpResourceServlet();
+                logger.log(Level.WARNING, "init HttpResourceSerlvet(" + resServlet + ") error", e);
+            }
+            this.resourceHttpServlet.init(context, resConfig);
         }
-        if (resConfig == null) { //主要用于嵌入式的HttpServer初始化
-            DefaultAnyValue dresConfig = new DefaultAnyValue();
-            dresConfig.addValue("webroot", config.getValue("root"));
-            dresConfig.addValue("ranges", config.getValue("ranges"));
-            dresConfig.addValue("cache", config.getAnyValue("cache"));
-            AnyValue[] rewrites = config.getAnyValues("rewrite");
-            if (rewrites != null) {
-                for (AnyValue rewrite : rewrites) {
-                    dresConfig.addValue("rewrite", rewrite);
+        { //设置TemplateEngine            
+            AnyValue engineConfig = config.getAnyValue("template-engine");
+            if (engineConfig != null) {
+                String engineType = engineConfig.getValue("value");
+                try {
+                    this.templateEngine = (HttpTemplateEngine) Thread.currentThread().getContextClassLoader().loadClass(engineType).newInstance();
+                    this.templateEngine.init(context, engineConfig);
+                } catch (Throwable e) {
+                    logger.log(Level.WARNING, "init HttpTemplateEngine(" + engineType + ") error", e);
                 }
             }
-            resConfig = dresConfig;
+            //设置给Context
+            context.setTemplateEngine(this.templateEngine);
         }
-        String resServlet = resConfig.getValue("servlet", HttpResourceServlet.class.getName());
-        try {
-            this.resourceHttpServlet = (HttpServlet) Thread.currentThread().getContextClassLoader().loadClass(resServlet).newInstance();
-        } catch (Throwable e) {
-            this.resourceHttpServlet = new HttpResourceServlet();
-            logger.log(Level.WARNING, "init HttpResourceSerlvet(" + resServlet + ") error", e);
-        }
-        this.resourceHttpServlet.init(context, resConfig);
     }
 
     @Override
@@ -373,6 +391,14 @@ public class HttpPrepareServlet extends PrepareServlet<String, HttpContext, Http
         return this.resourceHttpServlet;
     }
 
+    public void setTemplateEngine(final HttpTemplateEngine engine) {
+        this.templateEngine = engine;
+    }
+
+    public HttpTemplateEngine getTemplateEngine() {
+        return this.templateEngine;
+    }
+
     @Override
     public void destroy(HttpContext context, AnyValue config) {
         super.destroy(context, config); //必须要执行
diff --git a/src/org/redkale/net/http/HttpResponse.java b/src/org/redkale/net/http/HttpResponse.java
index e5717a22d..8386b655c 100644
--- a/src/org/redkale/net/http/HttpResponse.java
+++ b/src/org/redkale/net/http/HttpResponse.java
@@ -15,7 +15,7 @@ import java.text.*;
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.atomic.AtomicLong;
-import java.util.function.BiFunction;
+import java.util.function.*;
 import java.util.logging.Level;
 import org.redkale.convert.*;
 import org.redkale.convert.json.JsonConvert;
@@ -225,7 +225,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
         return Utility.createAsyncHandler((v, a) -> {
             finish(v);
         }, (t, a) -> {
-            request.getContext().getLogger().log(Level.WARNING, "Servlet occur, forece to close channel. request = " + request + ", result is CompletionHandler", (Throwable) t);
+            context.getLogger().log(Level.WARNING, "Servlet occur, forece to close channel. request = " + request + ", result is CompletionHandler", (Throwable) t);
             finish(500, null);
         });
     }
@@ -246,6 +246,15 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
         return context.loadAsyncHandlerCreator(handlerClass).create(createAsyncHandler());
     }
 
+    /**
+     * 获取ByteBuffer生成器
+     *
+     * @return ByteBuffer生成器
+     */
+    public Supplier<ByteBuffer> getBufferSupplier() {
+        return getBodyBufferSupplier();
+    }
+
     /**
      * 将对象以JSON格式输出
      *
@@ -446,7 +455,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
             try {
                 finish((File) obj);
             } catch (IOException e) {
-                getContext().getLogger().log(Level.WARNING, "HttpServlet finish File occur, forece to close channel. request = " + getRequest(), e);
+                context.getLogger().log(Level.WARNING, "HttpServlet finish File occur, forece to close channel. request = " + getRequest(), e);
                 finish(500, null);
             }
         } else if (obj instanceof HttpResult) {
@@ -458,6 +467,17 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
             } else {
                 finish(convert, result.getResult());
             }
+        } else if (obj instanceof HttpScope) {
+            HttpScope scope = (HttpScope) obj;
+            if (this.recycleListener != null) this.output = obj;
+            this.contentType = "text/html; charset=utf-8";
+            HttpTemplateEngine templateEngine = context.getTemplateEngine();
+            if (templateEngine == null) {
+                context.getLogger().log(Level.WARNING, "HttpServlet not found HttpTemplateEngine. request = " + getRequest() + ", scope = " + scope);
+                finish(500, null);
+            } else {
+                templateEngine.renderTo(this, scope);
+            }
         } else {
             if (convert instanceof TextConvert) this.contentType = "text/plain; charset=utf-8";
             if (this.recycleListener != null) this.output = obj;
@@ -1098,7 +1118,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
 
         @Override
         public void failed(Throwable exc, ByteBuffer attachment) {
-            getContext().offerBuffer(attachment);
+            context.offerBuffer(attachment);
             finish(true);
             try {
                 filechannel.close();
diff --git a/src/org/redkale/net/http/HttpScope.java b/src/org/redkale/net/http/HttpScope.java
new file mode 100644
index 000000000..7d77ba06b
--- /dev/null
+++ b/src/org/redkale/net/http/HttpScope.java
@@ -0,0 +1,84 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.net.http;
+
+import java.util.*;
+import org.redkale.convert.*;
+import org.redkale.convert.json.JsonConvert;
+
+/**
+ * HTTP模板的对象域 <br>
+ * 模板引擎的核心类, 业务开发人员只有通过本类对象才能调用到模板引擎功能。 <br>
+ * <p>
+ * HttpServlet调用: <br>
+ * <pre>
+ *    &#064;HttpMapping(url = "/hello.html", auth = false)
+ *    public void hello(HttpRequest req, HttpResponse resp) throws IOException {
+ *        resp.finish(HttpScope.template("/hello.html").attr("content", "哈哈"));
+ *    }
+ * </pre>
+ * <p>
+ * RestService调用: <br>
+ * <pre>
+ *    &#064;RestMapping(name = "hello.html", auth = false)
+ *    public HttpScope hello() {
+ *       return HttpScope.template("hello.html").attr("content", "哈哈");
+ *    }
+ * </pre>
+ *
+ * 详情见: https://redkale.org
+ *
+ * @author zhangjx
+ */
+public class HttpScope {
+
+    protected String template;
+
+    protected Map<String, Object> attributes;
+
+    public static HttpScope template(String template) {
+        HttpScope rs = new HttpScope();
+        return rs.template(template);
+    }
+
+    public HttpScope attr(String name, Object value) {
+        if (this.attributes == null) this.attributes = new LinkedHashMap<>();
+        this.attributes.put(name, value);
+        return this;
+    }
+
+    public <T> T find(String name) {
+        return this.attributes == null ? null : (T) this.attributes.get(name);
+    }
+
+    public <T> T find(HttpScope parent, String name) {
+        T rs = this.attributes == null ? null : (T) this.attributes.get(name);
+        if (rs != null) return rs;
+        return parent == null ? null : parent.find(name);
+    }
+
+    public String getTemplate() {
+        return template;
+    }
+
+    public void setTemplate(String template) {
+        this.template = template;
+    }
+
+    public Map<String, Object> getAttributes() {
+        return attributes;
+    }
+
+    @ConvertDisabled(type = ConvertType.JSON)
+    public void setAttributes(Map<String, Object> attributes) {
+        this.attributes = attributes;
+    }
+
+    @Override
+    public String toString() {
+        return JsonConvert.root().convertTo(this);
+    }
+}
diff --git a/src/org/redkale/net/http/HttpTemplateEngine.java b/src/org/redkale/net/http/HttpTemplateEngine.java
new file mode 100644
index 000000000..71d148130
--- /dev/null
+++ b/src/org/redkale/net/http/HttpTemplateEngine.java
@@ -0,0 +1,24 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.net.http;
+
+import org.redkale.util.AnyValue;
+
+/**
+ * HTTP模板引擎的基类
+ *
+ * <p>
+ * 详情见: https://redkale.org
+ *
+ * @author zhangjx
+ */
+public interface HttpTemplateEngine {
+
+    default void init(HttpContext context, AnyValue config) {
+    }
+
+    public void renderTo(HttpResponse response, HttpScope scope);
+}