Spring IOC官方文档学习笔记之依赖项 Java

Java 专栏收录该内容
¥59.90 ¥99.00
103篇文章

Spring IOC官方文档学习笔记之依赖项 Java

在Spring框架中,IOC(Inversion of Control,控制反转)是一种设计模式,它通过将对象的创建和依赖关系管理交给容器来实现。而Spring IOC容器则负责实例化对象、管理对象之间的依赖关系,并在需要时将依赖项注入到对象中。本文将详细介绍在Spring中如何配置和使用依赖项,以及相应的Java代码示例。

首先,我们需要定义一个Java类作为我们的依赖项。假设我们有一个名为UserService的类,它依赖于一个名为UserRepository的接口。下面是UserService类的简单实现:

public class UserService {
   
   
    private UserRepository userRepository;

    public UserService
【Java基础】Spring之IOC特性 "Spring是一个开源的、轻量级的框架,是为了解决企业应用开发的复杂性而创建的。框架的主要优势之一就是其分层架构,分层架构运行使用者选择使用哪一种组件,同时为J2EE应用程序开发提供集成的框架。Spring的核心就是IOC和AOP". 阅读详情

相关推荐

【学习笔记】手写一个简单的 Spring IOC

Spring 的核心之一是 IOC,全称 Inversion Of Control ,控制反转,用来统一管理 Bean

LearnTech_123的博客 1635

在Mac上搭建本地AI工作流:Dify与DeepSeek的完美结合

本文介绍了在Mac上搭建本地AI工作流的方法,结合Dify平台和DeepSeek模型。Dify是一个开源的大语言模型应用开发平台,支持可视化AI应用开发。部署步骤包括:1)安装Homebrew和Docker;2)克隆Dify代码库;3)配置环境变量并启动服务。同时,使用Ollama工具本地部署DeepSeek模型,将其集成到Dify中创建聊天助手。通过配置模型接口和新建应用,用户可以在本地环境中实现AI对话功能。这种方案既保证了数据隐私,又提供了灵活的AI应用开发能力。

Linda的自动化测试之旅 1535

TK抓包协议分析:So层逆向

第三个参数是一个回调函数,这里他的返回值1表示成功,0表示失败,那我们手动把他Hook为0,让他不支持quic协议,实现降级。等,我们是为了解决抓包问题,那很有可能是在net目录下(network),那来搜索一下。开了抓包以后APP直接是网络无连接了,并且抓到的请求也是不正常的,下面我们就开始定位。看了半天感觉也没啥有用的东西,那下面我们整理一下已经有信息,来猜测一下,后续怎么进行。那可以猜测,我们真正需要Hook的那个函数也有可能是这样加载的,可以字符串搜索一下。

2503_90751938的博客 3417

企业信息化系统的组成模块-核心业务系统

通过标准化的数据流形成完整的业务闭环,CRM生成的销售订单驱动ERP的生产和采购,ERP将生产计划传递给MES执行,MES报工数据返回ERP进行成本核算,ERP再将交付信息同步给CRM供客户查询。生产管理确保高效交付,缩短订单周期。某贸易公司实施ERP供应链模块后,库存周转率从每年4次提升到8次,库存资金占用从2000万降到1200万,释放800万现金流,同时缺货率从15%降到5%。│ │库存 │ │ MRP │ │ ERP │ │ 云ERP/ │ │。

weiyvyy的博客 694

STM32 Nucleo-144开发板开箱bring-up

最近做项目,用到STM32F446ZET6这款MCU,为了赶进度,前期软件需要提前开发,于是在某宝买了对应主控的官方开发板,为了避免遗忘,后面能翻出来回忆一些细节,就形成了本篇的主要内容,同时也希望能够帮助刚上手的小伙伴少走弯路,如果对你有帮助请点赞、收藏、转发,谢谢!

汽车电子软件领域知识分享 2676

CCS安装教程图解说明:可视化步骤快速上手

通过清晰的图解步骤详解CCS安装过程,帮助新手快速掌握环境搭建。结合ccs安装教程与实际操作界面,每一步都直观易懂,大幅降低学习门槛,提升配置效率。

weixin_42611310的博客 963

nginx配置视频流加密防盗链(一)安装nginx插件

前段时间研究了一下视频流的简单加密防盗链,参考了很多文章,最后总算搞出来了。现在自己总结了一下。

u013294657的博客 1864

【数据库】银行/信贷业务测试工作中涉及的数据库表格

银行/信贷业务测试工作中涉及的数据库表格,金融信贷测试人必看!

孤之鹜的博客 1169

【Python爬虫系列】_005.浏览器开发者工具(详解)

Elements(元素)分析当前页面节点,用来辅助书写BS或者XPath这里面的数据与源代码有区别,不一定准确(避坑)Console(控制台)这个除了查看错误信息、打印调试信息(console.log())、写一些测试脚本以外,还可以当作Javascript API查看用例如我想查看console都有哪些方法和属性,我可以直接在Console中输入"console"并执行后续学js逆向的时候需要用到Sources(源代码)与在网页页面,鼠标右键——查看网页源代码 内容一致。

weixin_50296259的博客 422

ET2012新版免狗免安装绿色软件

ET2012新版免狗免安祖昂绿色软件。,新界面,新视觉,

老版QQ原生表情gif动态

这是老版的QQ表情,不过全是动态的的,Windows照片查看器是不会动的,可以右击用浏览器打开查看,再说一遍是老版的,只是分享给宁愿用老版也要动态的人。

深度学习工具包 DeepLearningToolbox

深度学习工具包Deprecation notice.-----This toolbox is outdated and no longer maintained.There are much better tools available for deep learning than this toolbox, e.g. [Theano](http://deeplearning.net/software/theano/), [torch](http://torch.ch/) or [tensorflow](http://www.tensorflow.org/)I would suggest you use one of the tools mentioned above rather than use this toolbox.Best, Rasmus.DeepLearnToolbox================A Matlab toolbox for Deep Learning.Deep Learning is a new subfield of machine learning that focuses on learning deep hierarchical models of data.It is inspired by the human brain's apparent deep (layered, hierarchical) architecture.A good overview of the theory of Deep Learning theory is[Learning Deep Architectures for AI](http://www.iro.umontreal.ca/~bengioy/papers/ftml_book.pdf)For a more informal introduction, see the following videos by Geoffrey Hinton and Andrew Ng.* [The Next Generation of Neural Networks](http://www.youtube.com/watch?v=AyzOUbkUf3M) (Hinton, 2007)* [Recent Developments in Deep Learning](http://www.youtube.com/watch?v=VdIURAu1-aU) (Hinton, 2010)* [Unsupervised Feature Learning and Deep Learning](http://www.youtube.com/watch?v=ZmNOAtZIgIk) (Ng, 2011)If you use this toolbox in your research please cite [Prediction as a candidate for learning deep hierarchical models of data](http://www2.imm.dtu.dk/pubdb/views/publication_details.php?id=6284)```@MASTERSTHESIS\{IMM2012-06284, author = "R. B. Palm", title = "Prediction as a candidate for learning deep hierarchical models of data", year = "2012",}```Contact: rasmusbergpalm at gmail dot comDirectories included in the toolbox-----------------------------------`NN/` - A library for Feedforward Backpropagation Neural Networks`CNN/` - A library for Convolutional Neural Networks`DBN/` - A library for Deep Belief Networks`SAE/` - A library for Stacked Auto-Encoders`CAE/` - A library for Convolutional Auto-Encoders`util/` - Utility functions used by the libraries`data/` - Data used by the examples`tests/` - unit tests to verify toolbox is workingFor references on each library check REFS.mdSetup-----1. Download.2. addpath(genpath('DeepLearnToolbox'));Example: Deep Belief Network---------------------```matlabfunction test_example_DBNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit RBM and visualize its weightsrand('state',0)dbn.sizes = [100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);figure; visualize(dbn.rbm{1}.W'); % Visualize the RBM weights%% ex2 train a 100-100 hidden unit DBN and use its weights to initialize a NNrand('state',0)%train dbndbn.sizes = [100 100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);%unfold dbn to nnnn = dbnunfoldtonn(dbn, 10);nn.activation_function = 'sigm';%train nnopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.10, 'Too big error');```Example: Stacked Auto-Encoders---------------------```matlabfunction test_example_SAEload mnist_uint8;train_x = double(train_x)/255;test_x = double(test_x)/255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit SDAE and use it to initialize a FFNN% Setup and train a stacked denoising autoencoder (SDAE)rand('state',0)sae = saesetup([784 100]);sae.ae{1}.activation_function = 'sigm';sae.ae{1}.learningRate = 1;sae.ae{1}.inputZeroMaskedFraction = 0.5;opts.numepochs = 1;opts.batchsize = 100;sae = saetrain(sae, train_x, opts);visualize(sae.ae{1}.W{1}(:,2:end)')% Use the SDAE to initialize a FFNNnn = nnsetup([784 100 10]);nn.activation_function = 'sigm';nn.learningRate = 1;nn.W{1} = sae.ae{1}.W{1};% Train the FFNNopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.16, 'Too big error');```Example: Convolutional Neural Nets---------------------```matlabfunction test_example_CNNload mnist_uint8;train_x = double(reshape(train_x',28,28,60000))/255;test_x = double(reshape(test_x',28,28,10000))/255;train_y = double(train_y');test_y = double(test_y');%% ex1 Train a 6c-2s-12c-2s Convolutional neural network %will run 1 epoch in about 200 second and get around 11% error. %With 100 epochs you'll get around 1.2% errorrand('state',0)cnn.layers = { struct('type', 'i') %input layer struct('type', 'c', 'outputmaps', 6, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %sub sampling layer struct('type', 'c', 'outputmaps', 12, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %subsampling layer};cnn = cnnsetup(cnn, train_x, train_y);opts.alpha = 1;opts.batchsize = 50;opts.numepochs = 1;cnn = cnntrain(cnn, train_x, train_y, opts);[er, bad] = cnntest(cnn, test_x, test_y);%plot mean squared errorfigure; plot(cnn.rL);assert(er<0.12, 'Too big error');```Example: Neural Networks---------------------```matlabfunction test_example_NNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);% normalize[train_x, mu, sigma] = zscore(train_x);test_x = normalize(test_x, mu, sigma);%% ex1 vanilla neural netrand('state',0)nn = nnsetup([784 100 10]);opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samples[nn, L] = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.08, 'Too big error');%% ex2 neural net with L2 weight decayrand('state',0)nn = nnsetup([784 100 10]);nn.weightPenaltyL2 = 1e-4; % L2 weight decayopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex3 neural net with dropoutrand('state',0)nn = nnsetup([784 100 10]);nn.dropoutFraction = 0.5; % Dropout fraction opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex4 neural net with sigmoid activation functionrand('state',0)nn = nnsetup([784 100 10]);nn.activation_function = 'sigm'; % Sigmoid activation functionnn.learningRate = 1; % Sigm require a lower learning rateopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex5 plotting functionalityrand('state',0)nn = nnsetup([784 20 10]);opts.numepochs = 5; % Number of full sweeps through datann.output = 'softmax'; % use softmax outputopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex6 neural net with sigmoid activation and plotting of validation and training error% split training data into training and validation datavx = train_x(1:10000,:);tx = train_x(10001:end,:);vy = train_y(1:10000,:);ty = train_y(10001:end,:);rand('state',0)nn = nnsetup([784 20 10]); nn.output = 'softmax'; % use softmax outputopts.numepochs = 5; % Number of full sweeps through dataopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, tx, ty, opts, vx, vy); % nntrain takes validation set as last two arguments (optionally)[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');```[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/rasmusbergpalm/deeplearntoolbox/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

Devexpress16.2.6破解工具

Devexpress16.2.6破解工具Devexpress16.2.6破解工具Devexpress16.2.6破解工具Devexpress16.2.6破解工具

上一篇: 约瑟夫环问题的Java实现
下一篇: MyBatis-Mate: 在Java中轻松实现数据权限控制
普通网友
博客等级 码龄3年 286粉丝 715原创
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符  | 博主筛选后可见
 
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付:10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值