flex调用js

// JavaScript代码
function alertMessage(message) {
    alert(message);
}

import flash.external.ExternalInterface;

// 确保ExternalInterface可用
if (ExternalInterface.available) {
    try {
        // 调用JavaScript中的alertMessage函数
        ExternalInterface.call("alertMessage", "Hello from Flex!");
    } catch (error:Error) {
        trace("Error calling JavaScript function: " + error.message);
    }
} else {
    trace("ExternalInterface is not available.");
}

import flash.external.ExternalInterface;

// 注册一个可以被JavaScript调用的函数
ExternalInterface.addCallback("flexFunction", flexFunction);

function flexFunction(message:String):void {
    trace("Message from JavaScript: " + message);
    // 这里可以执行Flex中的其他操作
}

// JavaScript代码
function callFlexFunction() {
    if (swfObject && swfObject.flexFunction) { // swfObject是Flex应用的引用
        swfObject.flexFunction("Hello from JavaScript!");
    } else {
        console.log("Flex function not available.");
    }
}

<object ...>
    <param name="allowScriptAccess" value="always" />
    ...
</object>