jsonpath

kubectl命令行工具用法详解

南笙酒味 提交于 2019-11-28 10:27:57
kubectl作为客户端CLI工具,可以让用户通过命令行的方式对Kubernetes集群进行操作。本节对kubectl的子命令和用法进行详细说明。 2.2.1 kubectl用法概述  kubectl命令行的语法如下: $ kubectl [command] [TYPE] [NAME] [flags]  其中,command、TYPE、NAME、flags的含义如下。 (1)command:子命令,用于操作Kubernetes集群资源对象的命令,例如create、delete、describe、get、apply等。 (2)TYPE:资源对象的类型,区分大小写,能以单数形式、复数形式或者简写形式表示。例如以下3种TYPE是等价的。 $ kubectl get pod pod1 $ kubectl get pods pod1 $ kubectl get po pod1 (3)NAME:资源对象的名称,区分大小写。如果不指定名称,则系统将返回属于TYPE的全部对象的列表,例如$ kubectl get pods将返回所有Pod的列表。 (4)flags:kubectl子命令的可选参数,例如使用“-s”指定apiserver的URL地址而不用默认值。 kubectl可操作的资源对象类型如表2.9所示。 <center>表 2.9 kubectl可操作的资源对象类型</center>

JSON Parser -java.lang.NoSuchFieldError: defaultReader

怎甘沉沦 提交于 2019-11-28 10:23:27
I am using a JSON parser to extract the value and I am using the following jar json-path-2.1.0, and I am getting the following error when I invoke the use case deployed as webservice on weblogic server I wrote a small main program to extract the value from the json string and it works fine, but the server version of the use case is giving the issue. I am not sure if there are any other jars part of my ear can negatively impact this SEVERE: defaultReader java.lang.NoSuchFieldError: defaultReader at com.jayway.jsonpath.spi.json.JsonSmartJsonProvider.<init>(JsonSmartJsonProvider.java:39) at com

JSONPath :contains filter

六月ゝ 毕业季﹏ 提交于 2019-11-28 00:11:53
问题 Hey all, I was wondering if any knew of a way to use a regular expression or wildcard operator (or pehaps '%LIKE%' in SQL) so I could use JSONPath to do searching within a large set of JSON data. For instance (and yes, I'm parsing, not eval( ) ing my data in the app): var obj = eval ( '({ "hey": "can you find me?" })' ); And I'd like to be able to look through the data like this: $.[?(@.hey:contains(find))] // (in jQuery terminology) where the contents of an argument is part or all of the

JSON.NET how to remove nodes

夙愿已清 提交于 2019-11-27 21:38:19
问题 I have a json like the following: { "d": { "results": [ { "__metadata": { }, "prop1": "value1", "prop2": "value2", "__some": "value" }, { "__metadata": { }, "prop3": "value1", "prop4": "value2", "__some": "value" }, ] } } I just want to transform this JSON into a different JSON. I want to strip out the "_ metadata" and " _some" nodes from the JSON. I'm using JSON.NET. 回答1: I just ended up deserializing to JObject and recursively looping through that to remove unwanted fields. Here's the

SpringBoot学习(一)

北慕城南 提交于 2019-11-27 16:16:18
  SpringBoot测试    @RunWith(SpringRunner.class) @SpringBootTest public class UserControllerTest { //用于伪造webMVC环境,模拟tomcat启动后的web程序 @Autowired private WebApplicationContext wac; private MockMvc mockMvc; @Before public void setup(){ mockMvc = MockMvcBuilders.webAppContextSetup(wac).build(); } //perform表示请求 //MockMvcRequestBuilders.get("/users")模拟get请求 //MockMvcRequestBuilders.get("/users") 请求格式 //andExpect表示服务请求的期望结果 // MockMvcResultMatchers.status().isOk(),http返回的状态码 //MockMvcResultMatchers.jsonPath("$.length()").value(3) //返回的集合数量(期待返回是一个集合 集合长度是3) @Test public void whenQuerySuccess() throws

Basic use of JSONPath in Java

元气小坏坏 提交于 2019-11-27 13:39:09
I have JSON as a string and a JSONPath as a string. I'd like to query the JSON with the JSON path, getting the resulting JSON as a string. I gather that Jayway's json-path is the standard . The online API , however, doesn't have have much relation to the actual library you get from Maven . GrepCode's version roughly matches up though. It seems like I ought to be able to do: String originalJson; //these are initialized to actual data String jsonPath; String queriedJson = JsonPath.<String>read(originalJson, jsonPath); The problem is that read returns whatever it feels most appropriate based on

How to use C# example using JsonPath?

你。 提交于 2019-11-27 13:00:17
问题 I'm trying to use JsonPath for .NET (http://code.google.com/p/jsonpath/downloads/list) and I'm having trouble finding an example of how to parse a Json string and a JsonPath string and get a result. Has anyone used this? 回答1: The problem you are experiencing is that the C# version of JsonPath does not include a Json parser so you have to use it with another Json framework that handles serialization and deserialization. The way JsonPath works is to use an interface called IJsonPathValueSystem

C#解析json的两种方法记录

梦想的初衷 提交于 2019-11-27 12:42:45
代码: using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using Newtonsoft.Json; using UnityEngine; namespace Assets._03_Scripte.Tools { public static class JsonHandle { //保存json文件路径 static string JsonPath(string path) { return Application.streamingAssetsPath + "/" + path + ".json"; } public static void SavaJsonFile<T>(T jsonData, string path) { //保存json数据到本地 //如果本地没有对应的json 文件,重新创建 if (!File.Exists(JsonPath(path))) { File.Create(JsonPath(path)); } string json = JsonUtility.ToJson(jsonData, true); File.WriteAllText(JsonPath(path), json); Debug

Kubernetes身份认证和授权操作全攻略:K8s 访问控制入门

╄→гoц情女王★ 提交于 2019-11-27 07:21:14
随着Kubernetes被广泛使用,成为业界公认的容器编排管理的标准框架,许多开发人员以及管理员对部署、弹性伸缩以及管理容器化应用程序等Kubernetes的关键概念都十分熟悉。而对于生产部署而言,Kubernetes的安全性至关重要。因此,了解平台如何管理用户和应用程序的身份认证和授权十分必要。 我们将推出一系列文章,以一种实践性的视角来了解平台内部的Kubernetes和Pod外部用户的身份认证和授权。我也会解释如何使用角色以及角色绑定来允许或限制资源访问。 API Server——Kubernetes网关 API为Kubernetes各类资源对象(如节点、标签、Pod、服务、部署、secrets、configmaps以及ingress等)提供访问接口。这些资源对象通过简单的REST API执行基本的CRUD(增删改查)操作。 Kubernetes的核心构建块之一是API Server,它作为Kubernetes的网关,是访问和管理资源对象的唯一入口。内部组件(如kubelet、调度程序和控制器)通过API Server访问API以进行编排和协调。分布式键/值数据库、etcd只能通过API Server访问。 通常我们可以通过命令行工具kubectl来与API Server进行交互。从kubectl发送的任何内容最终都会被API Server所接收。因此

JSON Parser -java.lang.NoSuchFieldError: defaultReader

这一生的挚爱 提交于 2019-11-27 03:35:59
问题 I am using a JSON parser to extract the value and I am using the following jar json-path-2.1.0, and I am getting the following error when I invoke the use case deployed as webservice on weblogic server I wrote a small main program to extract the value from the json string and it works fine, but the server version of the use case is giving the issue. I am not sure if there are any other jars part of my ear can negatively impact this SEVERE: defaultReader java.lang.NoSuchFieldError: