jquery 之ajax,get,post异步请求简单代码模版

$.get("../cart/cart_list.do",
    "productId=" + productId,
    function(data){
    alert(data);
});

$.get

$.post("../cart/cart_list.do",
    "productId=" + productId,
    function (data) {
    alert(data);
});

$.post

url = __ctx + "/maintenance/onceequipment/tdJxdEquipment/dialogGltxfsdSend.ht";

var params = {
    "ids": arrIds,
    "id": id
};
$.ajax({
    "url": url,
    "type": "post",
    "async": true,
    "data": params,
    "dataType": "json",
    "success": function (data) {
        if (data == 'true') {
            $.ligerDialog.success("操作成功", "提示信息", function (rtn) {
                if (rtn) {
                    //刷新父类窗口
                    try {
                        getParentWindow().refreshLeftTree();
                    } catch (e) {}
                    self.location = document.referrer;
                }
            });
        } else {
            $.ligerDialog.err("提示信息", "失败!", "操作失败");
            //刷新父类窗口
            try {
                getParentWindow().refreshLeftTree();
            } catch (e) {}
            self.location = document.referrer;
        }
    }

});

$.ajax

完整例子：

<select id="changeWcz" style="border:1px solid rgb(115,186,255)" onchange="updateWczZt(this)">
    <option value="N">否</option>
    <option value="Y" <c:if test='${yjdlfhzb.zt=="Y"}'>selected=selected</c:if>>是</option>
</select>

html

function updateWczZt(obj) {
        var zt = $(obj).val();
        var msg = '';
        if (zt == '' || zt == null || zt == 'N') {
            msg = "移除误差？";
            zt = "N";
        } else {
            msg = "添加错差？";
            zt = "Y";
        }
        $.ligerDialog.confirm(msg, function(yes) {
            if (yes) {
                    var id = $("input[name='id']").val();
                    var url = __ctx + "/yjdlfh/yjdlfh/yjdlfhzb/updateWczZt.ht";
                    var params = {
                        id : id,
                        zt : zt
                    }
                    $.ajax({
                        url : url,
                        data : params,
                        type : "post",
                        async : true,
                        success : function(rtn) {
                            if (rtn == "true") {
                                $.ligerDialog.success("修改成功");
                                var tjrq = $("input[name='rq']").val();
                                location.href = __ctx
                                        + "/yjdlfh/yjdlfh/yjdlfhzb/edit.ht?tjrq="
                                        + tjrq;
                            } else {
                                $.ligerDialog.alert("修改失败");
                            }
                        },
                        error : function() {
                            $.ligerDialog.alert("修改失败");
                        }
                    });
                }
            });
        
    }

js

/**
     * 
     * TODO方法名称描述
     * 
     * @return
     */
    @ResponseBody
    @RequestMapping("updateWczZt")
    public String updateWczZt(HttpServletRequest request, HttpServletResponse response) {
        String isSuc = "false";
        Long id = RequestUtil.getLong(request, "id");
        logger.info("id是否为空===="+id);
        String zt = RequestUtil.getStringValues(request, "zt");
        logger.info("zt 是否为空===="+zt );
        Yjdlfhzb e = yjdlfhzbService.getById(id);
        if (e != null) {
            e.setZt(zt);
            yjdlfhzbService.update(e);
            isSuc = "true";
        }
        return isSuc;
        
    }

java