diff --git a/src/org/redkale/boot/ApiDocs.java b/src/org/redkale/boot/ApiDocs.java
index 2f67f2040..abf5e6dba 100644
--- a/src/org/redkale/boot/ApiDocs.java
+++ b/src/org/redkale/boot/ApiDocs.java
@@ -126,6 +126,7 @@ public class ApiDocs extends HttpBaseServlet {
                             parammap.put("type", ptype.getName() + (isarray ? "[]" : ""));
                             parammap.put("src", param.src());
                             parammap.put("comment", param.comment());
+                            parammap.put("required", param.required());
                             paramsList.add(parammap);
                             if (ptype.isPrimitive() || ptype == String.class) continue;
                             if (typesmap.containsKey(ptype.getName())) continue;
@@ -188,7 +189,7 @@ public class ApiDocs extends HttpBaseServlet {
             in = new FileInputStream(doctemplate);
         }
         if (in == null) in = ApiDocs.class.getResourceAsStream("apidoc-template.html");
-        String content = Utility.read(in).replace("${content}", json);
+        String content = Utility.read(in).replace("'${content}'", json);
         in.close();
         FileOutputStream outhtml = new FileOutputStream(new File(app.getHome(), "apidoc.html"));
         outhtml.write(content.getBytes("UTF-8"));
diff --git a/src/org/redkale/boot/apidoc-template.html b/src/org/redkale/boot/apidoc-template.html
index 08dec1f55..7b835eba0 100644
--- a/src/org/redkale/boot/apidoc-template.html
+++ b/src/org/redkale/boot/apidoc-template.html
@@ -29,7 +29,7 @@
                         var servlet = jsoncontent.servers[i].servlets[j];
                         if (html.length > 2) html.push(' <tr><th colspan="5" style="border-bottom:0;">&nbsp;</th></tr>');
                         html.push(' <tr><th colspan="5" style="border-top:' + ((html.length > 2) ? 0 : 1) + ';">' + (servlet.comment || '未知模块') + '</th></tr>');
-                        html.push(' <tr><th>请求URL</th><th>描 述</th><th>鉴 权</th><th>参 数 <span style="font-size:12px;">(红色: Header; 蓝色: Cookie)</span></th><th>输 出</th></tr>');
+                        html.push(' <tr><th>请求URL</th><th>描 述</th><th>鉴 权</th><th>参 数 <span style="font-size:12px;">(粗体: 必填项; 红色: Header; 蓝色: Cookie)</span></th><th>输 出</th></tr>');
                         for (var k = 0; k < servlet.actions.length; k++) {
                             var action = servlet.actions[k];
                             html.push(' <tr>');
@@ -47,9 +47,10 @@
                                 if (param.name == '&') {
                                     paramshtml.push('<tr><td style="font-size:12px;">内置 </td><td> ' + t + '</td><td> 当前用户</td></tr>');
                                 } else {
-                                    var c = ' style="font-weight:bold;"';
-                                    if (param.src == "HEADER") c = ' style="color:red;font-weight:bold;"';
-                                    if (param.src == "COOKIE") c = ' style="color:blue;font-weight:bold;"';
+                                    var w = param.required ? "font-weight:bold;" : "";
+                                    var c = ' style="' + w + '"';
+                                    if (param.src == "HEADER") c = ' style="color:red;' + w + '"';
+                                    if (param.src == "COOKIE") c = ' style="color:blue;' + w + '"';
                                     paramshtml.push('<tr><td ' + c + '> ' + param.name + ' </td><td> ' + t + '</td><td> ' + param.comment + '</td></tr>');
                                 }
                             }
@@ -90,7 +91,7 @@
         </script>
 
         <script>
-            var jsoncontent = ${content};
+            var jsoncontent = '${content}'; //这里必须要用单引号引起来
             document.write(createhtml(jsoncontent));
         </script>
     </body>
diff --git a/src/org/redkale/net/http/HttpBaseServlet.java b/src/org/redkale/net/http/HttpBaseServlet.java
index e0c196319..9ccc391e6 100644
--- a/src/org/redkale/net/http/HttpBaseServlet.java
+++ b/src/org/redkale/net/http/HttpBaseServlet.java
@@ -89,6 +89,8 @@ public abstract class HttpBaseServlet extends HttpServlet {
         ParamSourceType src() default ParamSourceType.PARAMETER; //参数来源类型
 
         int radix() default 10; //转换数字byte/short/int/long时所用的进制数， 默认10进制
+
+        boolean required() default true; //参数是否必传
     }
 
     @Documented
diff --git a/src/org/redkale/net/http/Rest.java b/src/org/redkale/net/http/Rest.java
index 0096746f8..5f3b141f1 100644
--- a/src/org/redkale/net/http/Rest.java
+++ b/src/org/redkale/net/http/Rest.java
@@ -262,6 +262,7 @@ public final class Rest {
                 final Class ptype = param.getType();
                 String n = null;
                 String comment = "";
+                boolean required = true;
                 int radix = 10;
 
                 RestHeader annhead = param.getAnnotation(RestHeader.class);
@@ -297,6 +298,7 @@ public final class Rest {
                 RestParam annpara = param.getAnnotation(RestParam.class);
                 if (annpara != null) radix = annpara.radix();
                 if (annpara != null) comment = annpara.comment();
+                if (annpara != null) required = annpara.required();
                 if (n == null) n = (annpara == null || annpara.name().isEmpty()) ? null : annpara.name();
                 if (n == null && ptype == userType) n = "&"; //用户类型特殊处理
                 if (n == null) {
@@ -312,7 +314,7 @@ public final class Rest {
                     && (entry.name.startsWith("find") || entry.name.startsWith("delete")) && params.length == 1) {
                     if (ptype.isPrimitive() || ptype == String.class) n = "#";
                 }
-                paramlist.add(new Object[]{param, n, ptype, radix, comment, annpara, annsid, annaddr, annhead, anncookie});
+                paramlist.add(new Object[]{param, n, ptype, radix, comment, required, annpara, annsid, annaddr, annhead, anncookie});
             }
 
             Map<String, Object> actionMap = new LinkedHashMap<>();
@@ -354,9 +356,9 @@ public final class Rest {
                 av0 = mv.visitAnnotation(webparamsDesc, true);
                 AnnotationVisitor av1 = av0.visitArray("value");
                 //设置 WebParam
-                for (Object[] ps : paramlist) { //{param, n, ptype, radix, comment, annpara, annsid, annaddr, annhead, anncookie}   
-                    final boolean ishead = ((RestHeader) ps[8]) != null; //是否取getHeader 而不是 getParameter
-                    final boolean iscookie = ((RestCookie) ps[9]) != null; //是否取getCookie
+                for (Object[] ps : paramlist) { //{param, n, ptype, radix, comment, required, annpara, annsid, annaddr, annhead, anncookie}   
+                    final boolean ishead = ((RestHeader) ps[9]) != null; //是否取getHeader 而不是 getParameter
+                    final boolean iscookie = ((RestCookie) ps[10]) != null; //是否取getCookie
 
                     AnnotationVisitor av2 = av1.visitAnnotation(null, webparamDesc);
                     av2.visit("name", (String) ps[1]);
@@ -365,6 +367,7 @@ public final class Rest {
                     av2.visitEnum("src", sourcetypeDesc, ishead ? HttpBaseServlet.ParamSourceType.HEADER.name()
                         : (iscookie ? HttpBaseServlet.ParamSourceType.COOKIE.name() : HttpBaseServlet.ParamSourceType.PARAMETER.name()));
                     av2.visit("comment", (String) ps[4]);
+                    av2.visit("required", (Boolean) ps[5]);
                     av2.visitEnd();
                 }
                 av1.visitEnd();
@@ -377,11 +380,12 @@ public final class Rest {
                 Class ptype = (Class) ps[2];
                 int radix = (Integer) ps[3];
                 String comment = (String) ps[4];
-                RestParam annpara = (RestParam) ps[5];
-                RestSessionid annsid = (RestSessionid) ps[6];
-                RestAddress annaddr = (RestAddress) ps[7];
-                RestHeader annhead = (RestHeader) ps[8];
-                RestCookie anncookie = (RestCookie) ps[9];
+                boolean required = (Boolean) ps[5];
+                RestParam annpara = (RestParam) ps[6];
+                RestSessionid annsid = (RestSessionid) ps[7];
+                RestAddress annaddr = (RestAddress) ps[8];
+                RestHeader annhead = (RestHeader) ps[9];
+                RestCookie anncookie = (RestCookie) ps[10];
 
                 final boolean ishead = annhead != null; //是否取getHeader 而不是 getParameter
                 final boolean iscookie = anncookie != null; //是否取getCookie
diff --git a/src/org/redkale/net/http/RestParam.java b/src/org/redkale/net/http/RestParam.java
index 2f20949f7..8cbd3437b 100644
--- a/src/org/redkale/net/http/RestParam.java
+++ b/src/org/redkale/net/http/RestParam.java
@@ -28,5 +28,7 @@ public @interface RestParam {
 
     int radix() default 10; //转换数字byte/short/int/long时所用的进制数， 默认10进制
 
+    boolean required() default true; //参数是否必传
+
     String comment() default ""; //备注描述
 }