src/META-INF/application-template.xml

@@ -233,11 +233,11 @@
         </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
+           当Server为HTTP协议时，render才有效. 指定输出引擎的实现类
+           value: 输出引擎的实现类, 必须是org.redkale.net.http.HttpRender的子类
         -->
-        <template-engine value="org.redkalex.htel.XXXHttpTemplateEngine">
-        </template-engine>
+        <render value="org.redkalex.htel.HttpTemplateRender">
+        </render>
         <!-- 
            【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

src/org/redkale/boot/NodeHttpServer.java

@@ -205,8 +205,10 @@ public class NodeHttpServer extends NodeServer {
                 loadRestServlet(webSocketFilter, restConf, restedObjects, sb);
             }
         }
-        resourceFactory.inject(this.httpServer.getTemplateEngine(), this);
         resourceFactory.inject(this.httpServer.getPrepareServlet(), this);
+        for (HttpRender render : this.httpServer.getHttpRenders()) {
+            resourceFactory.inject(render, this);
+        }
         if (sb != null && sb.length() > 0) logger.log(Level.INFO, sb.toString().trim());
     }
 

src/org/redkale/net/http/HttpContext.java

@@ -31,8 +31,6 @@ 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) {
@@ -42,14 +40,6 @@ 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);

src/org/redkale/net/http/HttpPrepareServlet.java

@@ -31,8 +31,6 @@ 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;
@@ -47,6 +45,8 @@ public class HttpPrepareServlet extends PrepareServlet<String, HttpContext, Http
 
     private BiPredicate<String, String>[] forbidURIPredicates; //禁用的URL的Predicate, 必须与 forbidURIMaps 保持一致
 
+    final List<HttpRender> renders = new ArrayList<>();
+
     private List<HttpServlet> removeHttpServlet(final Predicate<MappingEntry> predicateEntry, final Predicate<Map.Entry<String, WebSocketServlet>> predicateFilter) {
         List<HttpServlet> servlets = new ArrayList<>();
         synchronized (allMapStrings) {
@@ -233,18 +233,22 @@ public class HttpPrepareServlet extends PrepareServlet<String, HttpContext, Http
             this.resourceHttpServlet.init(context, resConfig);
         }
         { //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);
+            AnyValue[] renderConfigs = config.getAnyValues("render");
+            if (renderConfigs != null) {
+                for (AnyValue renderConfig : renderConfigs) {
+                    String renderType = renderConfig.getValue("value");
+                    try {
+                        HttpRender render = (HttpRender) Thread.currentThread().getContextClassLoader().loadClass(renderType).newInstance();
+                        for (HttpRender one : renders) {
+                            if (one.getType().equals(render.getType())) throw new RuntimeException("HttpRender(" + renderType + ") repeat");
+                        }
+                        renders.add(render);
+                    } catch (Throwable e) {
+                        logger.log(Level.WARNING, "init HttpRender(" + renderType + ") error", e);
+                    }
                 }
+                Collections.sort(renders, (o1, o2) -> o1.getType().isAssignableFrom(o2.getType()) ? 1 : -1);
             }
-            //设置给Context
-            context.setTemplateEngine(this.templateEngine);
         }
     }
 
@@ -391,14 +395,6 @@ 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

src/org/redkale/net/http/HttpRender.java

@@ -8,17 +8,20 @@ package org.redkale.net.http;
 import org.redkale.util.AnyValue;
 
 /**
- * HTTP模板引擎的基类
+ * HTTP输出引擎的基类
  *
  * <p>
  * 详情见: https://redkale.org
  *
  * @author zhangjx
+ * @param <T> 泛型
  */
-public interface HttpTemplateEngine {
+public interface HttpRender<T> {
 
     default void init(HttpContext context, AnyValue config) {
     }
 
-    public void renderTo(HttpRequest request, HttpResponse response, HttpScope scope);
+    public <V extends T> void renderTo(HttpRequest request, HttpResponse response, V scope);
+
+    public Class<T> getType();
 }

src/org/redkale/net/http/HttpResponse.java

@@ -122,17 +122,26 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
 
     private final HttpCookie defcookie;
 
+    private final List<HttpRender> renders;
+
+    private final boolean hasRender;
+
+    private final HttpRender onlyoneHttpRender;
+
     public static ObjectPool<Response> createPool(AtomicLong creatCounter, AtomicLong cycleCounter, int max, Creator<Response> creator) {
         return new ObjectPool<>(creatCounter, cycleCounter, max, creator, (x) -> ((HttpResponse) x).prepare(), (x) -> ((HttpResponse) x).recycle());
     }
 
     public HttpResponse(HttpContext context, HttpRequest request, String[][] defaultAddHeaders, String[][] defaultSetHeaders,
-        HttpCookie defcookie, boolean autoOptions) {
+        HttpCookie defcookie, boolean autoOptions, List< HttpRender> renders) {
         super(context, request);
         this.defaultAddHeaders = defaultAddHeaders;
         this.defaultSetHeaders = defaultSetHeaders;
         this.defcookie = defcookie;
         this.autoOptions = autoOptions;
+        this.renders = renders;
+        this.hasRender = renders != null && !renders.isEmpty();
+        this.onlyoneHttpRender = renders != null && renders.size() == 1 ? renders.get(0) : null;
     }
 
     @Override
@@ -467,18 +476,24 @@ 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.request, this, scope);
-            }
         } else {
+            if (hasRender) {
+                if (onlyoneHttpRender != null) {
+                    if (onlyoneHttpRender.getType().isAssignableFrom(obj.getClass())) {
+                        onlyoneHttpRender.renderTo(this.request, this, obj);
+                        return;
+                    }
+                } else {
+                    Class objt = obj.getClass();
+                    for (HttpRender render : this.renders) {
+                        if (render.getType().isAssignableFrom(objt)) {
+                            render.renderTo(this.request, this, obj);
+                            return;
+                        }
+                    }
+                }
+            }
+
             if (convert instanceof TextConvert) this.contentType = "text/plain; charset=utf-8";
             if (this.recycleListener != null) this.output = obj;
             if (obj instanceof org.redkale.service.RetResult) {

src/org/redkale/net/http/HttpScope.java

@@ -1,7 +1,7 @@
 /*
  * 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.
+ * To change this referid file, choose Tools | Templates
+ * and open the referid in the editor.
  */
 package org.redkale.net.http;
 
@@ -17,18 +17,18 @@ import org.redkale.convert.json.JsonConvert;
  * 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>
+    public void hello(HttpRequest req, HttpResponse resp) throws IOException {
+        resp.finish(HttpScope.refer("/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>
+    public HttpScope hello() {
+       return HttpScope.refer("hello.html").attr("content", "哈哈");
+    }
+ </pre>
  *
  * 详情见: https://redkale.org
  *
@@ -36,13 +36,13 @@ import org.redkale.convert.json.JsonConvert;
  */
 public class HttpScope {
 
-    protected String template;
+    protected String referid;
 
     protected Map<String, Object> attributes;
 
-    public static HttpScope template(String template) {
+    public static HttpScope refer(String template) {
         HttpScope rs = new HttpScope();
-        rs.setTemplate(template);
+        rs.setReferid(template);
         return rs;
     }
 
@@ -74,12 +74,12 @@ public class HttpScope {
         this.attributes.forEach(action);
     }
 
-    public String getTemplate() {
-        return template;
+    public String getReferid() {
+        return referid;
     }
 
-    public void setTemplate(String template) {
-        this.template = template;
+    public void setReferid(String referid) {
+        this.referid = referid;
     }
 
     public Map<String, Object> getAttributes() {

src/org/redkale/net/http/HttpServer.java

@@ -48,12 +48,12 @@ public class HttpServer extends Server<String, HttpContext, HttpRequest, HttpRes
     }
 
     /**
-     * 获取HttpTemplateEngine
+     * 获取HttpRender列表
      *
-     * @return HttpTemplateEngine
+     * @return HttpRender列表
      */
-    public HttpTemplateEngine getTemplateEngine() {
-        return (HttpTemplateEngine) ((HttpPrepareServlet) this.prepare).templateEngine;
+    public List<HttpRender> getHttpRenders() {
+        return ((HttpPrepareServlet) this.prepare).renders;
     }
 
     /**
@@ -370,7 +370,7 @@ public class HttpServer extends Server<String, HttpContext, HttpRequest, HttpRes
         ObjectPool<Response> responsePool = HttpResponse.createPool(createResponseCounter, cycleResponseCounter, this.responsePoolSize, null);
         HttpContext httpcontext = new HttpContext(this.serverStartTime, this.logger, executor, rcapacity, bufferPool, responsePool,
             this.maxbody, this.charset, this.address, this.prepare, this.readTimeoutSecond, this.writeTimeoutSecond);
-        responsePool.setCreator((Object... params) -> new HttpResponse(httpcontext, new HttpRequest(httpcontext, addrHeader), addHeaders, setHeaders, defCookie, options));
+        responsePool.setCreator((Object... params) -> new HttpResponse(httpcontext, new HttpRequest(httpcontext, addrHeader), addHeaders, setHeaders, defCookie, options, ((HttpPrepareServlet) prepare).renders));
         return httpcontext;
     }