diff --git a/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/util/OpenUtil.java b/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/util/OpenUtil.java
index 61c1d527..a99813cd 100644
--- a/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/util/OpenUtil.java
+++ b/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/util/OpenUtil.java
@@ -67,12 +67,8 @@ public class OpenUtil {
         for (Map.Entry<String, String[]> entry : entrySet) {
             String name = entry.getKey();
             String[] values = entry.getValue();
-            if (values.length == 1) {
+            if (values.length >= 1) {
                 retMap.put(name, values[0]);
-            } else if (values.length > 1) {
-                retMap.put(name, values);
-            } else {
-                retMap.put(name, "");
             }
         }
 
diff --git a/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/AlipayController.java b/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/AlipayController.java
index 563c1721..05233fed 100644
--- a/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/AlipayController.java
+++ b/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/AlipayController.java
@@ -127,13 +127,26 @@ public class AlipayController {
 
     // http://localhost:2222/alipay.story.get/
     @ApiMapping(value = "alipay.story.get")
-    public Story getStory() {
+    public Story getStory(Story param) {
         Story story = new Story();
         story.setId(1);
-        story.setName("海底小纵队(alipay.story.get1.0)");
+        story.setName("海底小纵队(alipay.story.get1.0), param:" + param);
         return story;
     }
 
+    /**
+     *
+     * @param param 对应biz_content中的内容，并自动JSR-303校验
+     * @return
+     */
+    @ApiMapping(value = "alipay.story.get", version = "1.2")
+    public Story getStory11(Story param) {
+        Story story2 = new Story();
+        story2.setId(1);
+        story2.setName("海底小纵队(alipay.story.get1.2), param:" + param);
+        return story2;
+    }
+
     /**
      * 参数绑定
      * @param story 对应biz_content中的内容，并自动JSR-303校验
@@ -153,19 +166,6 @@ public class AlipayController {
         return storyVO;
     }
 
-    /**
-     *
-     * @param story 对应biz_content中的内容，并自动JSR-303校验
-     * @return
-     */
-    @ApiMapping(value = "alipay.story.get", version = "1.2")
-    public Story getStory11(Story story) {
-        Story story2 = new Story();
-        story2.setId(1);
-        story2.setName("海底小纵队(alipay.story.get1.2)");
-        return story2;
-    }
-
     /**
      * 演示文档表格树
      * @param story
diff --git a/sop-gateway/src/main/java/com/gitee/sop/gateway/config/PreParamFilter.java b/sop-gateway/src/main/java/com/gitee/sop/gateway/config/PreParamFilter.java
new file mode 100644
index 00000000..74b78789
--- /dev/null
+++ b/sop-gateway/src/main/java/com/gitee/sop/gateway/config/PreParamFilter.java
@@ -0,0 +1,116 @@
+package com.gitee.sop.gateway.config;
+
+import com.alibaba.fastjson.JSONObject;
+import com.gitee.sop.gatewaycommon.param.ApiParam;
+import com.gitee.sop.gatewaycommon.param.ParamNames;
+import com.gitee.sop.gatewaycommon.zuul.ZuulContext;
+import com.gitee.sop.gatewaycommon.zuul.filter.BaseZuulFilter;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.netflix.zuul.context.RequestContext;
+import com.netflix.zuul.exception.ZuulException;
+import com.netflix.zuul.http.HttpServletRequestWrapper;
+import com.netflix.zuul.http.ServletInputStreamWrapper;
+import org.apache.commons.lang.StringUtils;
+import org.springframework.http.HttpMethod;
+
+import javax.servlet.ServletInputStream;
+import javax.servlet.http.HttpServletRequest;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author tanghc
+ */
+public class PreParamFilter extends BaseZuulFilter {
+    @Override
+    protected FilterType getFilterType() {
+        return FilterType.PRE;
+    }
+
+    @Override
+    protected int getFilterOrder() {
+        return 0;
+    }
+
+    @Override
+    protected Object doRun(RequestContext requestContext) throws ZuulException {
+        ApiParam apiParam = ZuulContext.getApiParam();
+        JSONObject bizContent = apiParam.getJSONObject(ParamNames.BIZ_CONTENT_NAME);
+        // 修改biz_content中的参数
+        bizContent.put("name", "修改了111");
+        apiParam.put(ParamNames.BIZ_CONTENT_NAME, bizContent.toJSONString());
+
+        HttpServletRequest request = requestContext.getRequest();
+        String contentType = request.getContentType();
+        if (StringUtils.containsIgnoreCase(contentType, "json")) {
+            byte[] bytes = apiParam.toJSONString().getBytes(StandardCharsets.UTF_8);
+            requestContext.setRequest(new HttpServletRequestWrapper(requestContext.getRequest()) {
+                @Override
+                public ServletInputStream getInputStream() throws IOException {
+                    return new ServletInputStreamWrapper(bytes);
+                }
+
+                @Override
+                public byte[] getContentData() {
+                    return bytes;
+                }
+
+                @Override
+                public int getContentLength() {
+                    return bytes.length;
+                }
+
+                @Override
+                public long getContentLengthLong() {
+                    return bytes.length;
+                }
+            });
+        } else if(StringUtils.containsIgnoreCase(contentType, "form")) {
+            List<String> list = Lists.newArrayList();
+            try {
+                for (Map.Entry<String, Object> entry : apiParam.entrySet()) {
+                    list.add(entry.getKey() + "=" + URLEncoder.encode(String.valueOf(entry.getValue()), "UTF-8"));
+                }
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+            }
+            String paramsStr = StringUtils.join(list, "&");
+            byte[] bytes = paramsStr.getBytes(StandardCharsets.UTF_8);
+            requestContext.setRequest(new HttpServletRequestWrapper(requestContext.getRequest()) {
+                @Override
+                public ServletInputStream getInputStream() throws IOException {
+                    return new ServletInputStreamWrapper(bytes);
+                }
+
+                @Override
+                public byte[] getContentData() {
+                    return bytes;
+                }
+
+                @Override
+                public int getContentLength() {
+                    return bytes.length;
+                }
+
+                @Override
+                public long getContentLengthLong() {
+                    return bytes.length;
+                }
+            });
+        } else if(HttpMethod.GET.name().equalsIgnoreCase(request.getMethod())) {
+            Map<String, List<String>> newParams = Maps.newHashMap();
+            for (Map.Entry<String, Object> entry : apiParam.entrySet()) {
+                newParams.put(entry.getKey(), Collections.singletonList(String.valueOf(entry.getValue())));
+            }
+            requestContext.setRequestQueryParams(newParams);
+        }
+
+        return null;
+    }
+}