一、同步调用的异常处理：AJAX Toolkit try catch...
<html><head><script src="/soap/ajax/44.0/connection.js" type="text/javascript"></script><script>function setupPage() {var output = document.getElementById("output");var startTime = new Date().getTime()try {var queryResult = sforce.connection.query("Select Id, Name, Industry FromAccount order by Industry limit 30");layoutResults(queryResult, output, startTime);} catch(error) {queryFailed(error, output);}}function queryFailed(error, out) {out.innerHTML = "<font color=red>An error has occurred:</font> <p>" + error;}function layoutResults(queryResult, out, startTime) {var timeTaken = new Date().getTime() - startTime;if (queryResult.size > 0) {var output = "";var records = queryResult.getArray(‘records‘);for (var i = 0; i < records.length; i++) {var account = records[i];output += account.Id + " " + account.Name + " [Industry - "+ account.Industry + "]<BR>";}out.innerHTML = output + "<BR> query complexted in: " + timeTaken + " ms.";} else {out.innerHTML = "No records matched.";}}</script></head><body onload="setupPage()">div id="output"></div></body></html> 二、VFPage AJAX Toolkit 中的数据迭代形式
?var result = sforce.connection.query("select id, name from account limit 10"); var it = new sforce.QueryResultIterator(result); ?while (it.hasNext()) { ???var account = it.next(); ?sforce.debug.log(account.Name);}三、AJAX Toolkit 中字符串单引号的使用方式
Bob‘s B-B-Q
Apex 中使用方式：SELECT ID from ACCOUNT WHERE Name LIKE ‘Bob\‘s B-B-Q%‘
Ajax：SELECT ID from ACCOUNT WHERE Name LIKE ‘Bob\\‘s B-B-Q%‘
四、使用Base64二进制编码字符串:例子待补充
引用放到static中js 要用：<apex:includeScript value="{!URLFOR($Resource.majac_static, ‘js/common.js‘)}"/>
<apex:page >
<html><head><script type="text/javascript"src="//ajax.googleapis.com/ajax/libs/dojo/1.10.4/dojo/dojo.js"></script><script src="/soap/ajax/44.0/connection.js"></script><script>function setup() {var document_ta = document.getElementById("document-ta");sforce.connection.query("select name, id from document limit 1",{onSuccess : querySuccess,onFailure : function(error, doc_ta) {doc_ta.value = "Oops something went wrong: " + error;},source: document_ta});}function querySuccess(result, doc_ta) {var records = result.getArray("records");if (records.length == 1) {dojo.io.bind({url: "/servlet/servlet.FileDownload?file=" + records[0].Id,load: loadDocument});} else {doc_ta.value = "no records found";}}function loadDocument(type, data, event) {var document_ta = document.getElementById("document-ta");document_ta.value = data;}</script></head><body onload="setup()"><textarea id="document-ta" cols="80" rows="20"></textarea></body></html>
</apex:page >
五、异步调用的超时参数：如果一个异步调用在适当的时间内没有完成，我们可以结束这个调用。要做到这一点，请在任何异步调用的回调部分中指定超时参数。
var account = new sforce.SObject("Account");
account.Name = "my new account";sforce.connection.create([account], {onSuccess: print, onFailure: printerr, timeout: 100});六、Ajax 委托给Remote Site
新建一个一条 remoete site：
sforce.connection.remoteFunction({ ???????url : "https://th-apex-http-callout.herokuapp.com", ??????????onSuccess : function(response) { ??????????alert("result" + response); ???????} ???});
069_VisualForce Ajax 更多用法解读02
原文地址：https://www.cnblogs.com/bandariFang/p/9705037.html