你不想要一个字符串，你真的想要一个键值对的 JS 映射.例如，改变:

You don't want a string, you really want a JS map of key value pairs. E.g., change:

 data: myDataVar.toString(),

与:

var myKeyVals = { A1984 : 1, A9873 : 5, A1674 : 2, A8724 : 1, A3574 : 3, A1165 : 5 }



var saveData = $.ajax({
      type: 'POST',
      url: "someaction.do?action=saveData",
      data: myKeyVals,
      dataType: "text",
      success: function(resultData) { alert("Save Complete") }
});
saveData.error(function() { alert("Something went wrong"); });

jQuery 理解这样的键值对，它不理解大字符串.它只是将其作为字符串传递.

jQuery understands key value pairs like that, it does NOT understand a big string. It passes it simply as a string.

更新:代码已修复.