properties

Using properties in web.xml

由 假如想象 提交于 2019-12-29 05:25:09
问题 I would like to control the settings in web.xml and using different once for different environments. Is it possible to use a property, from a property file on classpath, in web.xml? Something like this: <context-param> <param-name>myparam</param-name> <param-value>classpath:mypropertyfile.properties['myproperty']</param-value> </context-param> Best regards P 回答1: No. However you can pass the properties file in and read from it at runtime. <context-param> <param-name>propfile</param-name>

读取配置文件简单帮助类

由 亡梦爱人 提交于 2019-12-29 05:13:21
package com.demo.test; import java.io.IOException; import java.io.InputStream; import java.util.Locale; import java.util.MissingResourceException; import java.util.Properties; import java.util.ResourceBundle; /** * * 类: PropertiesUtil * 描述: 读取配置文件 * 作者: xxx * 版本: 1.0 * 时间: 2015-7-18 上午11:30:01 */ public class PropertiesUtil { private ResourceBundle resourceBundle; private String Path; private Properties propertie; private InputStream inputStream; /*//不同包下通过Properties读取 String valueString1=new PropertiesUtil("/com/demo/config/config.properties").getPropertyValue("username"); System.out.println

When to use properties in objective C?

由 一曲冷凌霜 提交于 2019-12-29 04:42:19
问题 I have a question here: Confusing double free error message/memory leak in iPhone app which I think needs a new question to answer it. The code I am interested in is in that question but I will re post it here #import <UIKit/UIKit.h> #import "MyManager.h" @interface ListOfCarShares : UITableViewController <NSXMLParserDelegate> { NSURLConnection *connection; NSMutableData *carsharexml; NSMutableArray *ldestination; NSMutableArray *ldeparts_from; NSMutableArray *lcs_id; NSMutableArray *ltime;

The easiest way to access an object's single own property?

由 送分小仙女□ 提交于 2019-12-29 02:14:08
问题 I have an object which will only have one property (own property). What is the easiest way to access that property's value? Something like: value = obj[<firstProperty>]; I know I can write a function or a for loop to do this but am asking if there is a shorter way. for (p in obj) { if (obj.hasOwnProperty(p)) { value = obj[p]; } } I won't know the name of the property up front. I only know that there will only be one property directly on the object. 回答1: something like var value = obj[ Object

Spring Boot: Retrieving configuration from a database

由 百般思念 提交于 2019-12-29 01:16:52
问题 Can anyone offer me some guidance on the best way for me to achieve this goal. I'd like to extend the Spring Boot Externalized Configuration so that I have a single method which can be called from anywhere in my application. This method will retrieve a property value using a key. This method will first interrogate a database table and if it does not find the specified key it will then fall back on the PropertySource order described in 1. So I'd have a service similar to: @Service public class

Spring Boot 2.x（六）：优雅的统一返回值

由 余生颓废 提交于 2019-12-28 19:45:14
目录 为什么要统一返回值 ReturnVO ReturnCode 使用ReturnVO 使用AOP进行全局异常的处理 公众号 为什么要统一返回值 在我们做后端应用的时候，前后端分离的情况下，我们经常会定义一个数据格式，通常会包含 code ， message ， data 这三个必不可少的信息来方便我们的交流，下面我们直接来看代码 ReturnVO package indi.viyoung.viboot.util; import java.util.Properties; /** * 统一定义返回类 * * @author yangwei * @since 2018/12/20 */ public class ReturnVO { private static final Properties properties = ReadPropertiesUtil.getProperties(System.getProperty("user.dir") + "/viboot-common/src/main/resources/response.properties"); /** * 返回代码 */ private String code; /** * 返回信息 */ private String message; /** * 返回数据 */ private Object data;

IDEA编辑properties文件后，提交git后中文出现乱码

由 ￣綄美尐妖づ 提交于 2019-12-28 17:11:48
问题是这样的 　　从git上clone的项目代码，然后在本地使用IDEA进行开发，IDEA设置的properties文件编码使用utf8格式； 　　打开properties文件，并没看到乱码，然后编辑了properties文件，然后git diff时发现properties的中文全都变成了乱码。 　　于是我将IDEA对properties的编码方式改为ASCII编码和GBK编码，都没有用。 解决方式 　　询问你的同事，看同事是使用什么编码，那你就用什么配置，全用utf8也不一定正确。 　　有时候不需要配置就是最好的配置。 来源： https://www.cnblogs.com/-beyond/p/11759237.html

javascript object access performance

由 孤街醉人 提交于 2019-12-28 13:20:09
问题 In Javascript, when your getting a property of an object, is there a performance penalty to getting the whole object vs only getting a property of that object? Also Keep in mind I'm not talking about DOM access these are pure simple Javascript objects. For example: Is there some kind of performance difference between the following code: Assumed to be faster but not sure: var length = some.object[key].length; if(length === condition){ // Do something that doesnt need anything inside of some

How can you bind an Indexed property to a control in WPF

由 对着背影说爱祢 提交于 2019-12-28 13:04:14
问题 Given an instance of the class ThisClassShouldBeTheDataContext as the Datacontext for the view class ThisClassShouldBeTheDataContext { public Contacts Contacts {get;set;} } class Contacts { public IEnumerable<Person> Persons {get;set;} public Person this[string Name] { get { var p = from i in Persons where i.Name = Name select i; return p.First(); } } } class Person { public string Name {get;set;} public string PhoneNumber {get;set;} } How can I bind Contact["John"].PhoneNumber to a textbox?

How can you bind an Indexed property to a control in WPF

由 佐手、 提交于 2019-12-28 13:03:06
问题 Given an instance of the class ThisClassShouldBeTheDataContext as the Datacontext for the view class ThisClassShouldBeTheDataContext { public Contacts Contacts {get;set;} } class Contacts { public IEnumerable<Person> Persons {get;set;} public Person this[string Name] { get { var p = from i in Persons where i.Name = Name select i; return p.First(); } } } class Person { public string Name {get;set;} public string PhoneNumber {get;set;} } How can I bind Contact["John"].PhoneNumber to a textbox?
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