diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderRequest.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderRequest.java
index edfe3f527..ecd73dd5a 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderRequest.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderRequest.java
@@ -1,6 +1,7 @@
 package com.github.binarywang.wxpay.bean.request;
 
 import com.github.binarywang.wxpay.config.WxPayConfig;
+import com.github.binarywang.wxpay.constant.WxPayConstants.TradeType;
 import com.github.binarywang.wxpay.exception.WxPayException;
 import com.thoughtworks.xstream.annotations.XStreamAlias;
 import lombok.*;
@@ -23,8 +24,6 @@ import org.apache.commons.lang3.StringUtils;
 @AllArgsConstructor
 @XStreamAlias("xml")
 public class WxPayUnifiedOrderRequest extends WxPayBaseRequest {
-  private static final String[] TRADE_TYPES = new String[]{"JSAPI", "NATIVE", "APP", "MWEB"};
-
   /**
    * <pre>
    * 字段名：设备号
@@ -334,16 +333,11 @@ public class WxPayUnifiedOrderRequest extends WxPayBaseRequest {
 
   @Override
   protected void checkConstraints() throws WxPayException {
-//    if (!ArrayUtils.contains(TRADE_TYPES, this.getTradeType())) {
-//      throw new WxPayException(String.format("trade_type目前必须为%s其中之一,实际值：%s",
-//        Arrays.toString(TRADE_TYPES), this.getTradeType()));
-//    }
-
-    if ("JSAPI".equals(this.getTradeType()) && this.getOpenid() == null && this.getSubOpenid() == null) {
+    if (TradeType.JSAPI.equals(this.getTradeType()) && this.getOpenid() == null && this.getSubOpenid() == null) {
       throw new WxPayException("当 trade_type是'JSAPI'时未指定openid或sub_openid");
     }
 
-    if ("NATIVE".equals(this.getTradeType()) && this.getProductId() == null) {
+    if (TradeType.NATIVE.equals(this.getTradeType()) && this.getProductId() == null) {
       throw new WxPayException("当 trade_type是'NATIVE'时未指定product_id");
     }
   }
diff --git a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/WxPayServiceAbstractImplTest.java b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/WxPayServiceAbstractImplTest.java
index d54942b4a..3c27ce18d 100644
--- a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/WxPayServiceAbstractImplTest.java
+++ b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/WxPayServiceAbstractImplTest.java
@@ -24,7 +24,6 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Calendar;
 import java.util.Date;
-import java.util.Map;
 
 import static org.testng.Assert.*;
 
@@ -103,26 +102,11 @@ public class WxPayServiceAbstractImplTest {
       .createOrder(WxPayUnifiedOrderRequest.newBuilder()
         .body("我去")
         .totalFee(1)
+        .productId("aaa")
         .spbillCreateIp("11.1.11.1")
         .notifyURL("111111")
         .tradeType(TradeType.NATIVE)
-        .outTradeNo("1111112")
-        .build());
-    this.logger.info(result.toString());
-    this.logger.warn(this.payService.getWxApiData().toString());
-  }
-
-  @Test
-  public void testCreateOrder_micropay() throws Exception {
-    //TODO 待完善
-    Object result = this.payService
-      .createOrder(WxPayUnifiedOrderRequest.newBuilder()
-        .body("我去")
-        .totalFee(1)
-        .spbillCreateIp("11.1.11.1")
-        .notifyURL("111111")
-        .tradeType(TradeType.MICROPAY)
-        .outTradeNo("1111112")
+        .outTradeNo("111111290")
         .build());
     this.logger.info(result.toString());
     this.logger.warn(this.payService.getWxApiData().toString());
@@ -130,17 +114,7 @@ public class WxPayServiceAbstractImplTest {
 
   @Test
   public void testGetPayInfo() throws Exception {
-    Map<String, String> payInfo = this.payService
-      .getPayInfo(WxPayUnifiedOrderRequest.newBuilder()
-        .body("我去")
-        .totalFee(1)
-        .spbillCreateIp("1.11.1.11")
-        .notifyURL("111111")
-        .tradeType(TradeType.JSAPI)
-        .outTradeNo("1111113")
-        .openid(((XmlWxPayConfig) this.payService.getConfig()).getOpenid())
-        .build());
-    this.logger.info(payInfo.toString());
+    //please use createOrder instead
   }
 
   /**