//调用方法
function printStack() {
    Java.perform(function () {
        var Exception = Java.use("java.lang.Exception");
        var ins = Exception.$new("Exception");
        var straces = ins.getStackTrace();
        if (straces != undefined && straces != null) {
            var strace = straces.toString();
            var replaceStr = strace.replace(/,/g, "\r\n");
            console.log("=============================Stack strat=======================");
            console.log(replaceStr);
            console.log("=============================Stack end=======================\r\n");
            Exception.$dispose();
        }
    });
}
//以下为使用方法
Java.perform(function x() {
    var my_class = Java.use("xxx");
    my_class.a.overload().implementation = function () {
        printStack();
        var ret_value = this.a(x);
        return ret_value;
    }