param

Python下载Bing首页图片

一世执手 提交于 2019-12-24 17:50:43
import requests import time BING_IMG = 'https://cn.bing.com/th?id=OHR.ReindeerNorway_ZH-CN5913190372_1920x1080.jpg&rf=LaDigue_1920x1080.jpg&pid=hp' DEFAULT_IMG_NAME = time . strftime ( '%Y-%m-%d %H:%M:%S' , time . localtime ( ) ) + '.jpg' def get_image ( url ) : """ :param url: image link address :return: binary image data """ response = requests . get ( url ) img_b = response . content return img_b def save_image ( img_b , file_name ) : """ :param file_name: image file name :param img_b: binary image data :return: None """ with open ( file_name , 'wb' ) as f : f . write ( img_b ) def download

Struts 2 : Passing array of String as static param

自作多情 提交于 2019-12-23 19:08:10
问题 I wanted to declare an action in such a way that I could pass String array of static parameter. I tried the below code: <action name="saveRecord" class="saveRecordAction"> <result name="success" type="tiles">tiles:saveRecordSuccess</result> <param name="names">name1</param> <param name="names">name2</param> <param name="names">name3</param> </action> I have a setter in my action class: public void setNames(String[] name){ mNames = name; } But I am only receiving one name which is the last one

Using one parameter multiple times in prepared mysqli-statement

梦想与她 提交于 2019-12-23 13:43:04
问题 Is it possible to use one parameter in a prepared mysqli -statement multiple times with only binding it one time ? something like this $stmt = $mysqli->prepare(SELECT * FROM user WHERE age BETWEEN ?1 - 2 AND ?1 + 2); $stmt->bind_param('i', $myAge); I think this is possible with PDO , but I don't konw how to do this with mysqli . 回答1: Just to close the question: The answer is no . If you want to bind a parameter only one time and using it multiple times in a query you have to use PDO and this

Java结合SpringBoot拦截器实现

有些话、适合烂在心里 提交于 2019-12-23 13:22:38
大家都知道在开发的项目中不可或缺的就是登录模块,在登录模块中当然也少不了需要做登录拦截,因为不做登录拦截的话,如果用户知道某些接口的url地址,就可以跳过登录界面,直接在浏览器上输入接口的url进行访问,直接操作我们的数据,这样肯定是不安全的。所有我们需要做登录拦截,即在用户在不登录的情况下,不管是通过页面访问需要登录的接口,还是直接通过在浏览器上输入url来访问需要登录的接口,都不能让其访问,必须要让其登录之后才能访问到。如果在没有登录的情况下通过任何一种方式来访问需要在登录的情况下才能访问的接口,都会跑出异常 那么以上的问题应该怎么来实现呢?其实很简单,我们只需要用到两个东西就可以了,即HandlerInterceptor 接口和WebMvcConfigurerAdapter类 1、首先创建一个LoginInterceptor类来实现HandlerInterceptor ,这个类是整个登录认证模块中的核心类之一,它实现了HandlerInterceptor类,由它来拦截并过滤到来的每一个请求;它的三个方法能分别作用于每个请求的不同生命周期,你可以根据自己的需要来加入相应的处理逻辑; @Component public class LoginInterceptor implements HandlerInterceptor { /** * 在请求被处理之前调用 * @param

小程序模板消息

瘦欲@ 提交于 2019-12-22 09:03:10
"prepay_id" 只有进行了支付行为才能获得,并且必须支付成功! 当用户在小程序内完成过支付行为,可允许开发者向用户在7天内推送有限条数的模板消息(1次支付可下发3条,多次支付下发条数独立,互相不影响) 相对适合的通知业务有 —— 后台发货提醒、审核通知、课程开班提醒、拼团成功通知等主动推送的信息... 使用 "<form/>" 组件 当用户在小程序内发生过提交表单行为且该表单声明为要发模板消息的,开发者需要向用户提供服务时,可允许开发者向用户在7天内推送有限条数的模板消息(1次提交表单可下发1条,多次提交下发条数独立,相互不影响) 相对适合的通知业务 —— 支付成功或失败后,充值成功、 续费成功、挂号成功等被动响应的信息... <?php /** * 小程序助手 */ class XcxHelper { /** * 发送模板消息 * @param $accessToken * @param $template_id 模板id * @param $touser 接收人的openid * @param $data 模板参数 * @param string $form_id 表单提交场景下,为 submit 事件带上的 formId;支付场景下,为本次支付的 prepay_id * @param string $page 小程序中的跳转页面,没有可不填,支持参数 * @param

why jsp:include parameters not visible

流过昼夜 提交于 2019-12-22 07:01:16
问题 I have exactly the same basic question about accessing jsp:param values as this poster; following his example exactly does not work for me. The parameters passed in via jsp:include don't seem to show up in the included file. Is there something peculiar about my setup? Caller: <div> <jsp:include page="../../../common/callee.jsp"> <jsp:param name="justinVar" value="primary" /> </jsp:include> </div> callee.jsp: <i>method 1: [</i><b><%= request.getParameter("justinVar") %></b><i>]</i> <p/> <i

How to bind param multiple times with MySQLI?

孤街浪徒 提交于 2019-12-22 06:49:04
问题 This is how I'm binding my params: $Con = mysqli_connect(...); $Statement = mysqli_stmt_init($Con); mysqli_stmt_prepare($Statement,"select * from users where name=? and email=?"); mysqli_stmt_bind_param("s",$Username); mysqli_stmt_bind_param("s",$Email); <-- it fails here But it works fine in the other case when I replace the 2 calls to mysqli_stmt_bind_param with: mysql_stmt_bind_param("ss",$Username,$Email) The problem is that I have an array of params; I have to bind them one by one coz I

spring AOP总结

∥☆過路亽.° 提交于 2019-12-22 02:21:58
通配符 * 匹配任意数量字符 //任意返回值,任意名称,任意参数的公共方法 execution(public * *(..)) //匹配com.zejian.dao包及其子包中所有类中的所有方法 within(com.zejian.dao..*) + 匹配给定类的任意子类 //匹配实现了DaoUser接口的所有子类的方法 within(com.zejian.dao.DaoUser+) .. 匹配任意数量参数,任意数量包. //匹配com.zejian.service包及其子包中所有类的所有方法 within(com.zejian.service..*) //匹配以set开头,参数为int类型,任意返回值的方法 execution(* set*(int)) execution关键字 方法签名表达式,语法如下: execution(<scope> <return-type> <fully-qualified-class-name>.function(parameters)) 参数解释: scope :方法作用域。如public、private、protect;不写默认所有方法 returnt-type:方法返回值类型。*代表所有返回类型 fully-qualified-class-name:方法所在类的完全限定名称。.. 表示包及所有子包 function:切入函数名称。

jsp:param with Java class

佐手、 提交于 2019-12-22 01:57:52
问题 I have a JSP file that includes another JSP file. The first JSP should pass an instance of a Java class (widget) to the second JSP file. This is what I have: The first JSP: <jsp:include page="/container/SpecialWidget.jsp"> <jsp:param name="widget" value="${widget}"/> // widget is a .Java POJO </jsp:include> The second JSP: ${param.widget.id} The problem is that this code gives an error (it says it doesn't know ID). If I omit the ".id" part, the page prints the Java code for the Java class,

jsp:param with Java class

感情迁移 提交于 2019-12-22 01:54:03
问题 I have a JSP file that includes another JSP file. The first JSP should pass an instance of a Java class (widget) to the second JSP file. This is what I have: The first JSP: <jsp:include page="/container/SpecialWidget.jsp"> <jsp:param name="widget" value="${widget}"/> // widget is a .Java POJO </jsp:include> The second JSP: ${param.widget.id} The problem is that this code gives an error (it says it doesn't know ID). If I omit the ".id" part, the page prints the Java code for the Java class,