phonegap jquery ajax失败（$ .support.cors = true）
jquery.mobile-1.1.1 jquery-1.7.2.min cordorva-1.9.0
我刚刚开始使用这个并且已经用它旋转了一个星期……我已经阅读了那里的每篇文章并尝试了我能想到的每一个组合，但仍然没有任何效果。 作为最后的手段，我把它移出了phonegap并进入了一个真正的浏览器页面，我得到了一些未定义的错误：
// if these are NOT set I get the "NO Transport" error $.support.cors = true; $.mobile.allowCrossDomainPages = true; // however, with the above defined (true), the following is the error: // xhr.statusText = "error" // textStatus = "error" // errorThrown.message = "Access Denied" function login(username, password) { var serviceURL = "http://mobile.mydomain.com/"; var strData = "username="+username +"&password="+password; // setup the paramaters for the ajax call var ajaxParams = { type: 'POST', url: serviceURL + 'mypage.php', data: strData, datatype: 'json', success: function(xmlData, textStatus, xhr) { onLoginOK(xmlData, textStatus, xhr) }, error: function(xhr, textStatus, errorThrown) { onLoginFailure(xhr, textStatus, errorThrown) }, timeout: 5000, cache: false }; // make the ajax call $.ajax(ajaxParams); } function onLoginOK(data, textStatus) { // probably not right but haven't gotten this far! var what = jQuery.parseJSON(data); alert("Login results: " + data); if(what.status == "OK") { localStorage.setItem("door", what.username); localStorage.setItem("knock", what.password); localStorage.setItem("house", what.userid); } else if(what.status == "FAILED") { alert("Login failed: " +what.text); } } function onLoginFailure(xhr, textStatus, errorThrown) { alert("There was an error: The server reported: " + xhr.responseText +"\nstatus: " +textStatus + "\nerror: " +errorThrown); } 在cordova.xml中，我允许访问我的域名：
有人有什么建议吗？
================================================== ======================这是来自eclipse：
07-27 09:12:16.612: I/dalvikvm(1295): Could not find method android.webkit.WebView., referenced from method org.apache.cordova.CordovaWebView. 07-27 09:12:16.612: W/dalvikvm(1295): VFY: unable to resolve direct method 3116: Landroid/webkit/WebView;. (Landroid/content/Context;Landroid/util/AttributeSet;IZ)V 07-27 09:12:17.339: I/webviewdatabase(1295): openOrCreateDatabase1 07-27 09:12:17.362: I/CordovaLog(1295): Changing log level to DEBUG(3) 07-27 09:12:17.362: I/CordovaLog(1295): Found preference for useBrowserHistory=false 07-27 09:12:17.378: E/dalvikvm(1295): Could not find class 'android.webkit.WebResourceResponse', referenced from method org.apache.cordova.CordovaWebViewClient.generateWebResourceResponse 07-27 09:12:17.378: W/dalvikvm(1295): VFY: unable to resolve new-instance 451 (Landroid/webkit/WebResourceResponse;) in Lorg/apache/cordova/CordovaWebViewClient; 07-27 09:12:17.378: W/dalvikvm(1295): VFY: unable to find class referenced in signature (Landroid/webkit/WebResourceResponse;) 07-27 09:12:17.386: W/dalvikvm(1295): VFY: unable to find class referenced in signature (Landroid/webkit/WebResourceResponse;) 07-27 09:12:17.386: W/dalvikvm(1295): VFY: unable to find class referenced in signature (Landroid/webkit/WebResourceResponse;) 07-27 09:12:17.386: I/dalvikvm(1295): Could not find method android.webkit.WebViewClient.shouldInterceptRequest, referenced from method org.apache.cordova.CordovaWebViewClient.shouldInterceptRequest 07-27 09:12:17.386: W/dalvikvm(1295): VFY: unable to resolve virtual method 3127: Landroid/webkit/WebViewClient;.shouldInterceptRequest (Landroid/webkit/WebView;Ljava/lang/String;)Landroid/webkit/WebResourceResponse; 07-27 09:12:19.706: W/dalvikvm(1295): No implementation found for native Lcom/carrieriq/iqagent/client/NativeClient;.clientInit (Ljava/lang/Object;)I 07-27 09:12:21.979: I/Database(1295): sqlite returned: error code = 14, msg = cannot open file at source line 25467 07-27 09:12:22.198: I/Web Console(1295): Error: SyntaxError: Unexpected token ILLEGAL at file:///android_asset/www/cordova-1.9.0.js:1012 07-27 09:12:22.347: I/Flex(1295): loadOperatorCode() strOp is AT&T 07-27 09:12:22.347: I/Flex(1295): loadOperatorCode() strMccList is 07-27 09:12:22.347: I/Flex(1295): loadOperatorCode() cr.query strMCC strMNC 07-27 09:12:22.354: I/Flex(1295): loadOperatorCode() mOperatorIndex ==> 1 07-27 09:12:24.167: I/Web Console(1295): **Error** initializing Network Connection: Class not found at file:///android_asset/www/cordova-1.9.0.js:5317 07-27 09:12:26.854: I/Web Console(1295): **JSCallback Error:** Request failed. at file:///android_asset/www/cordova-1.9.0.js:3747 07-27 09:12:28.331: I/Database(1295): sqlite returned: error code = 14, msg = cannot open file at source line 25467 07-27 09:12:28.347: I/Web Console(1295): **Error:** SyntaxError: Unexpected token ILLEGAL at file:///android_asset/www/cordova-1.9.0.js:1012 07-27 09:12:28.386: I/Web Console(1295): **Error** initializing Network Connection: Class not found at file:///android_asset/www/cordova-1.9.0.js:5317
首先，您应该在添加cordova或JQM脚本之前添加这些内容
然后你应该像这样做一个ajax请求
$ .ajax({ cache : false, type : 'POST',//While GET working async: false, url : "http://192.168.1.100/something.xml" + "?time=" + Date.now(), data : { key : "value" }, dataType : "xml", success : function(xml) { }, error : function(xhr, ajaxOptions, thrownError) { alert(xhr.status); alert(thrownError); } });
如果这不适合您使用XMLHttpRequest
var req = new XMLHttpRequest(); req.open("POST", "http://sofzh.miximages.com/jquery/something.JPG", true); req.setRequestHeader("Content-type", "image/jpg"); req.onreadystatechange = function() { if (req.readyState == 4) { if (req.status == 200) { var data = req.responseText; } } }; req.send(null);
你得到什么错误？ 您可以从FireBug或IE Developer Tools发布请求和响应文本吗？
看看你的代码我有一些你可能会尝试的想法，如果你还没有：
1）指定contentType。
contentType: "application/json; charset=utf-8" // <-- or whatever contentType
2）如果mypage.php需要请求正文中的用户名和密码，请尝试将strData更改为json
strData = { username:username, password:password }
3）和/或根据mypage.php是否需要对象或字符串来对其进行字符串化
JSON.stringify(strData);
此外，由于您的处理程序具有与匿名处理函数完全相同的参数，您可以替换：
success: function(xmlData, textStatus, xhr) { onLoginOK(xmlData, textStatus, xhr) }, error: function(xhr, textStatus, errorThrown) { onLoginFailure(xhr, textStatus, errorThrown) },
直接分配：
success: onLoginOK, error: onLoginFailure,
这可以通过删除可能的错误来源使调试更容易一些。
生成的代码可能如下所示......
function login(username, password) { var serviceURL = "http://mobile.mydomain.com/"; var strData = JSON.stringify({ username:username, password:password }); // setup the paramaters for the ajax call var ajaxParams = { type: 'POST', url: serviceURL + 'mypage.php', data: strData, datatype: 'json', contentType: "application/json; charset=utf-8" // <-- or whatever contentType success: onLoginOK, error: onLoginFailure, timeout: 5000, cache: false }; // make the ajax call $.ajax(ajaxParams); }
查看请求和响应文本真的很有帮助。 如果您没有上述任何帮助，可以将它们附加到您的回复中吗？