diff --git a/src/main/java/com/fanruan/api/design/work/ReportletPane.java b/src/main/java/com/fanruan/api/design/work/ReportletPane.java
new file mode 100644
index 0000000..4671429
--- /dev/null
+++ b/src/main/java/com/fanruan/api/design/work/ReportletPane.java
@@ -0,0 +1,4 @@
+package com.fanruan.api.design.work;
+
+public  class ReportletPane extends com.fr.design.gui.itree.filetree.ReportletPane {
+}
diff --git a/src/main/java/com/fanruan/api/err/ValidationException.java b/src/main/java/com/fanruan/api/err/ValidationException.java
new file mode 100644
index 0000000..7da52c4
--- /dev/null
+++ b/src/main/java/com/fanruan/api/err/ValidationException.java
@@ -0,0 +1,7 @@
+package com.fanruan.api.err;
+
+/**
+ * 验证异常
+ */
+public class ValidationException extends com.fr.design.Exception.ValidationException {
+}
diff --git a/src/main/java/com/fanruan/api/net/NetworkKit.java b/src/main/java/com/fanruan/api/net/NetworkKit.java
index d534934..ebc52ef 100644
--- a/src/main/java/com/fanruan/api/net/NetworkKit.java
+++ b/src/main/java/com/fanruan/api/net/NetworkKit.java
@@ -1,5 +1,6 @@
 package com.fanruan.api.net;
 
+import com.fr.base.ServerConfig;
 import com.fr.data.NetworkHelper;
 import org.jetbrains.annotations.Nullable;
 
@@ -117,4 +118,9 @@ public class NetworkKit {
     public static @Nullable String getHTTPRequestParameter(HttpServletRequest req, String... paraNames) {
         return NetworkHelper.getHTTPRequestParameter(req, paraNames);
     }
+
+
+    public static String createServletURL(HttpServletRequest req) {
+        return NetworkHelper.createServletURL(req, ServerConfig.getInstance().getServletName());
+    }
 }
diff --git a/src/main/java/com/fanruan/api/report/analy/data/NodeVisitor.java b/src/main/java/com/fanruan/api/report/analy/data/NodeVisitor.java
new file mode 100644
index 0000000..4029665
--- /dev/null
+++ b/src/main/java/com/fanruan/api/report/analy/data/NodeVisitor.java
@@ -0,0 +1,4 @@
+package com.fanruan.api.report.analy.data;
+
+public abstract class NodeVisitor extends com.fr.stable.core.NodeVisitor {
+}
diff --git a/src/main/java/com/fanruan/api/util/RenderKit.java b/src/main/java/com/fanruan/api/util/RenderKit.java
index 3858679..bd5d003 100644
--- a/src/main/java/com/fanruan/api/util/RenderKit.java
+++ b/src/main/java/com/fanruan/api/util/RenderKit.java
@@ -1,7 +1,10 @@
 package com.fanruan.api.util;
 
 import com.fr.base.TemplateUtils;
+import com.fr.script.Calculator;
+import com.fr.stable.script.CalculatorProvider;
 
+import java.util.Collections;
 import java.util.Map;
 
 /**
@@ -19,4 +22,16 @@ public class RenderKit {
     public static String renderParameter4Tpl(String text, Map<String, Object> map) throws Exception {
         return TemplateUtils.renderParameter4Tpl(text, map);
     }
+
+    /**
+     * 根据参数, 来计算文档字符串
+     * @param s 待渲染的文本模板
+     * @param c 参数集合
+     * @return 返回渲染后的文本
+     * @throws Exception 渲染过程中出现错误则抛出此异常
+     */
+    public static String render(String s, Calculator c) throws Exception {
+        return TemplateUtils.render(s, c);
+    }
+
 }
diff --git a/src/test/java/com/fanruan/api/util/RenderKitTest.java b/src/test/java/com/fanruan/api/util/RenderKitTest.java
index 4c53c41..a705166 100644
--- a/src/test/java/com/fanruan/api/util/RenderKitTest.java
+++ b/src/test/java/com/fanruan/api/util/RenderKitTest.java
@@ -1,13 +1,12 @@
 package com.fanruan.api.util;
 
 import com.fanruan.api.Prepare;
+import com.fr.script.Calculator;
 import org.junit.Assert;
 import org.junit.Test;
-
 import java.util.HashMap;
 import java.util.Map;
 
-import static org.junit.Assert.*;
 
 /**
  * @author richie
@@ -25,4 +24,15 @@ public class RenderKitTest extends Prepare {
         String text = "${name} is ${age} years old, he earned ${salary} dollars per month.";
         Assert.assertEquals("Alex is 20 years old, he earned 100 dollars per month.", RenderKit.renderParameter4Tpl(text, map));
     }
-}
\ No newline at end of file
+
+    @Test
+    public void render() throws Exception{
+        Calculator c = Calculator.createCalculator();
+        Map<String, Object> map = new HashMap<>();
+        map.put("p1",1);
+        map.put("p2",2);
+        String s = "abc${p1}xyz${p2}";
+        Assert.assertEquals("abcxyz", RenderKit.render(s,c));
+    }
+
+}