diff --git a/dist/main.js b/dist/main.js
index 67592e1..5083279 100644
--- a/dist/main.js
+++ b/dist/main.js
@@ -2,8 +2,8 @@
  * 
  * author : 7548764@qq.com
  * github : https://github.com/hatedMe/wechat-request
- * version : 1.4.1
+ * version : 1.4.2
  * 		
  */
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t.default=e,t}(n(0)),o={"Content-Type":"application/x-www-form-urlencoded"},u={method:"get",dataType:"json",responseType:"text",headers:{}};u.headers={common:{Accept:"application/json, text/plain, */*"}},["delete","get","head","post","put","patch"].map(function(e){u.headers[e]=r.merge(u.headers,o)}),t.default=u},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.dispatchRequest=void 0;var r=function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t.default=e,t}(n(0));t.dispatchRequest=function(e){e.baseURL&&!r.isAbsoluteURL(e.url)&&(e.url=r.combineURLs(e.baseURL,e.url)),e.headers=r.merge(e.headers.common||{},e.headers||{},e.headers[e.method]||{}),["delete","get","head","post","put","patch","common"].forEach(function(t){delete e.headers[t]});var t=Promise.resolve(e);return t.then(function(e){return new Promise(function(t,n){var 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e&&e.__esModule?e:{default:e}}var l=function(){function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.defaults=t,this.interceptors={request:new i.default,response:new i.default}}return o(e,[{key:"request",value:function(e){"string"==typeof e&&(e=u.merge({url:arguments[0]},arguments[1])),(e=u.merge(a.default,this.defaults,{method:"GET"},e)).method=e.method.toLowerCase();var t=[f.dispatchRequest,void 0],n=Promise.resolve(e);for(this.interceptors.request.forEach(function(e){t.unshift(e.fulfilled,e.rejected)}),this.interceptors.response.forEach(function(e){t.push(e.fulfilled,e.rejected)});t.length;)n=n.then(t.shift(),t.shift());return n}},{key:"all",value:function(e){return Promise.all(e)}},{key:"uploadFile",value:function(){var e=u.merge({url:arguments[0]},arguments[1]),t=void 0;if(e.formData&&"object"===r(e.formData)){for(var n in t=new FormData,e.formData)t.append(n,e.formData[n]);e.formData=t}return new 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r,o=(r=n(5))&&r.__esModule?r:{default:r};t.default=o.default}])});
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diff --git a/src/class.js b/src/class.js
index 79114a3..249c7d2 100644
--- a/src/class.js
+++ b/src/class.js
@@ -17,7 +17,7 @@ class Request {
     }
     request( config ){
         if( typeof config === 'string'){
-            config = util.merge({url: arguments[0]}, arguments[1]);
+            config = util.merge({url: arguments[0]}, {data: arguments[1]});
         }
         config = util.merge(defaults, this.defaults,{ method: 'GET' }, config );
         config.method = config.method.toLowerCase();
diff --git a/src/defaults.js b/src/defaults.js
index 1394a70..d9d6c39 100644
--- a/src/defaults.js
+++ b/src/defaults.js
@@ -3,7 +3,7 @@
 import * as util from './util';
 
 let DEFAULT_CONTENT_TYPE = {
-    'Content-Type': 'application/x-www-form-urlencoded'
+    'content-type': 'application/json'
 };
 
 var defaults = {