realm

Save image into realm [duplicate]

由 筅森魡賤 提交于 2020-02-05 08:28:00
问题 This question already has answers here : How to put an image in a Realm database? (2 answers) Closed 4 years ago . I would like to know if it is possible to save an image to realm database. If yes, how can I do that? I understand Swift only! Thank you in advance 回答1: The best way to save images and other kind of data in this case is to store only the URL to the file in the database. Attention: URL does NOT mean a remote URL. For example, if you want to persist your image, you can create a

realm, check schema version

由 江枫思渺然 提交于 2020-02-04 10:18:32
问题 I'm using Realm for Android, I'm wondering how to get the current schema version. In their Migration example, the version is incremented then saved, but I need to check the version before doing any upgrade. Thanks. 回答1: You can use the below code to get the current schema version of Realm before migration. Realm.init(context); RealmConfiguration realmConfig = new RealmConfiguration.Builder().build(); DynamicRealm realm = DynamicRealm.getInstance(realmConfig); long version = dynRealm

Error installing Realm via npm: npm ERR! Failed at the realm@1.2.0 install script 'node-pre-gyp install --fallback-to-build'

由 試著忘記壹切 提交于 2020-02-04 03:13:04
问题 I've found other issues regarding fallback to binary build for other node packages but none for Realm. I've tried some solutions from other scenarios such as: removing /home/.node-gyp , installing build-essential / installing libkrb5-dev , removing node_modules from project root and node-gyp and then doing a fresh npm install Yet when I run npm install --save realm I get this error trace: node-pre-gyp ERR! Tried to download(404): https://static.realm.io/node-pre-gyp/realm-v1.2.0-node-v51

Realm for React-native. reset database

由 人盡茶涼 提交于 2020-02-03 03:17:53
问题 I'am new in realm with react-native. I change schema often, but get migration error everytime I change. How do I reset realm database when I change schema? 回答1: You can just delete the app from the device or the simulator to reset the Realm. 回答2: It depends, if you are using Genymotion (for ANDROID simulation) you would use a different approach. Please note that for both approaches (XCODE & GENYMOTION) you will be reseting the simulator to factory settings... Here are the steps I used to do

快速学习Shiro-Shiro在SpringBoot工程的应用

由 无人久伴 提交于 2020-02-01 02:56:22
1 Shiro在SpringBoot工程的应用 Apache Shiro是一个功能强大、灵活的，开源的安全框架。它可以干净利落地处理身份验证、授权、企业会话管理和加密。越来越多的企业使用Shiro作为项目的安全框架，保证项目的平稳运行。 在之前的讲解中只是单独的使用shiro，方便对shiro有一个直观且清晰的认知，我们今天就来看一下shiro在springBoot工程中如何使用以及其他特性 1.1 案例说明 使用springBoot构建应用程序，整合shiro框架完成用户认证与授权。 1.1.1 数据库表 1.1.2 基本工程结构 导入资料中准备的基本工程代码，此工程中实现了基本用户角色权限的操作。我们只需要在此工程中添加Shiro相关的操作代码即可 1.2 整合Shiro 1.2.1 spring和shiro的整合依赖 <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.3.2<

centos7加入ad域

由 て烟熏妆下的殇ゞ 提交于 2020-02-01 00:06:07
一、 实验环境 1、 Windows 2008 datacenter 192.168.18.130 2、 Centos 7 192.168.18.131 client7 Windows 2008搭建域控环境，域名为test.com linux服务器需要创建主机名(需重启) Vi /etc/hostname linux服务器需要与AD时间同步 Ntpdate 192.168.18.130 linux服务器需要能够正常解析出test.com 更改dns Vi /etc/resolv.conf 一、 centos7加入AD域 1、 安装软件包 yum install -y krb5-workstation realmd sssd samba-common adcli oddjob oddjob-mkhomedir samba samba-common-tools 2、 发现域控制服务器 Realm discover test.com 3、 加入域realm join test 4、 用域账号验证登录 来源： 51CTO 作者： wlf19870919 链接： https://blog.51cto.com/3382419/2468672

Shiro【授权过滤器、与ehcache整合、验证码、记住我】

由 心已入冬 提交于 2020-01-31 04:50:19
前言 本文主要讲解的知识点有以下： Shiro授权过滤器使用 Shiro缓存 与Ehcache整合 Shiro应用->实现验证码功能 记住我功能 一、授权过滤器测试 我们的授权过滤器使用的是permissionsAuthorizationFilter来进行拦截。我们可以在application-shiro中配置filter规则 <!--商品查询需要商品查询权限 --> /items/queryItems.action = perms[item:query] /items/editItems.action = perms[item:edit] 测试流程： 1、 在applicationContext-shiro.xml中配置filter规则 <!--商品查询需要商品查询权限 --> /items/queryItems.action = perms[item:query] 2、 用户在认证通过后，请求/items/queryItems.action 3、被PermissionsAuthorizationFilter拦截， 发现需要“item:query”权限 4、PermissionsAuthorizationFilter 调用realm中的doGetAuthorizationInfo获取数据库中正确的权限 5、PermissionsAuthorizationFilter对item

使用Shiro实现认证和授权(基于SpringBoot)

由 三世轮回 提交于 2020-01-29 22:55:42
Apache Shiro是一个功能强大且易于使用的Java安全框架，它为开发人员提供了一种直观，全面的身份验证，授权，加密和会话管理解决方案。下面是在SpringBoot中使用Shiro进行认证和授权的例子，代码如下： pom.xml 导入SpringBoot和Shiro依赖： <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.4.2</version> </dependency> </dependencies> 也可以直接导入Apache Shiro提供的starter： <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring-boot-web-starter</artifactId> </dependency> Shiro配置类 package com.cf.shiro1

Realm Exception 'value' is not a valid managed object

由 时光怂恿深爱的人放手 提交于 2020-01-29 04:36:46
问题 I'm setting a property on a realm object with another realm object which is a different class, however I'm getting the error: 'value' is not avalid managed object. realmObject.setAnotherRealmObject(classInstance.returnAnotherRealmObjectWithValues()) The class instance receives anotherRealmObject constructor and returns it through the method with values from widgets: public ClassInstance(AnotherRealmObject anotherRealmObject){ mAnotherRealmObject = anotherRealmObject; } public

HTTP认证模式：Basic and Digest Access Authentication

由 夙愿已清 提交于 2020-01-26 23:17:01
一. Basic 认证 　　客户端以“ : ”连接用户名和密码后 ，再经 BASE64编码 ( Base64 Content-Transfer-Encoding )通过Authorization请求头发送该密文至服务端进行验证，每次请求都需要重复发送该密文。 可见Basic认证过程简单，安全性也低，存在泄露个人账号信息以及其他诸多安全问题，最好在实现了Transport Layer Security (TLS)的情况下去使用 。以下仅为原理演示，不代表真实情况： 客户端向服务器请求数据: GET / HTTP/1.1 Host: www.myrealm.com 服务端向客户端发送验证请求401： HTTP/1.1 401 Unauthorised Server: bfe/1.0.8.18 WWW-Authenticate: Basic realm="myrealm.com" Content-Type: text/html; charset=utf-8 客户端收到401返回值后，将自动弹出一个登录窗口，等待用户输入用户名和密码 将“用户名:密码”进行BASE64加密后发送服务端进行验证： GET / HTTP/1.1 Host: www.myrealm.com Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxx
订阅 realm