JSP-列表多选框删除数据

jsp多选框获得数据id传到后台查询_FunRich数据库:一个主要用于基因和蛋白质的功能富集以及相互作用网络分析的独立的软件工具... TCGA | 文献阅读 | R语言 | 数据库https://mp.weixin.qq.com/mp/appmsgalbum?action=getalbum&album_id=1338487030963142656&__biz=MzA4NDAzODkzMA==#wechat_redirect| 理论知识今天给大家介绍一个工具FunRich,FunRich (Functional E... 阅读详情
  1. 前台JSP的代码
  2. Servlet应怎样读取多个ID来进行删除
  3. 数据库如何操作删除多组数据

此项目用的是C3p0数据源,采用MVC模式,实现步骤可以供大家参考。

前台数据呈现如图所示:
在这里插入图片描述

为了方便看到实现的功能,样式我删掉了。样式就是用了简单的Bootstrap

<div>
<div>
	<input type="button" onclick="delCheck()" value="删除选中">
	<button type="button" id="button">添加景点</button>
</div>
<table>
  <tr height="50px;">
  	<th ><input  type="checkbox" onclick="checkAll(this)"></th>
	<th >ID</th>  
	<th >景区名</th>  
	<th >图片</th>  
	<th >简介</th>  
	<th >操作</th>
  </tr>
  <c:forEach items="${list}" var="p"
jsp select 带多选框 NULL 博文链接:https://ollevere.iteye.com/blog/1718528 立即下载

相关推荐

JSP+Ajax 添加、删除多选框

本例是采用JSP + Ajax + 文本来演示多选、全选,添加、删除、更新checkbox多选框的效果。 本例充分展现了利用JavaScript控制HTML DOM以及利用XML http 传递数据,利用JSP操作文本的效果。 1,JavaScript 用来控制页面内容的现实与增删效果;2,JSP作为后台,对文本进行读取、写入、更新等操作;3,文本格式是用来存储数据的,数据编码UTF-8;4, 本例子在win32,Red hat Linux 9下 jdk1.5,Tomcat 5.0,Apache 2.5下调试通过,同时兼容Firefox 1.0,Opera 8.0,IE6。 本例子的优点: 1

海思Hi3516CV610--SPI NAND Flash移植实战:从手册到驱动的完整适配

本文详细介绍了海思Hi3516CV610芯片上SPI NAND Flash的移植实战,包括从手册解读到驱动适配的完整流程。以GD5F2GM7UEYIGR Flash为例,重点讲解了关键参数确认、模式选择、时序配置以及U-Boot和Linux内核驱动的具体实现步骤,帮助开发者快速完成Flash移植工作。

weixin_29158413的博客 446

PLL锁相环基础知识(一)

本文介绍了锁相环(PLL)的核心组件及其工作原理,重点阐述了压控振荡器(VCO)的结构与调谐机制。VCO作为PLL的关键部分,通过变容二极管实现频率调谐,但易受温度、电压等因素影响稳定性。文章详细讲解了VCO的谐振电路原理、硅基集成方案,以及通过分频器和调制器实现的频率控制技术。特别分析了整数型和分数型N分频器的差异,指出高阶德尔塔-西格玛调制器可有效降低分数杂散。文章还探讨了预分频器的应用及其对频率分辨率的影响,揭示了PLL通过反馈环路实现频率锁定的基本原理。

weixin_49761275的博客 3029

Zemax实战:手把手教你设计一个40倍、NA0.65的显微物镜(附初始结构文件)

本文详细介绍了使用Zemax设计40倍、NA0.65显微物镜的完整流程,从初始结构搭建到优化验证,涵盖光学设计的关键技巧和实战经验。通过分阶段优化策略和公差分析,帮助工程师快速掌握高倍显微物镜的设计方法,提升光学系统性能。

weixin_42525369的博客 341

STM32 使用rtthread的DMA 串口发送失败

在一次使用RTthread的DMA 串口发送时,持续性通过DMA 发送串口数据时,偶发发送过程中后续数据包无法正常发送出去,后经查,发现为RT-Thread的串口中断处理有瑕疵,后做出修改。另,为了更方便的排查为题,建议修改。左为修改前,右为修改后。

qq_39294918的博客 1108

【论文翻译】YOLO26: KEY ARCHITECTURAL ENHANCEMENTS AND PERFORMANCE BENCHMARKING FOR REAL-TIME OBJECT DETEC

本研究对Ultralytics YOLO26进行了全面分析,重点阐述了其在实时边缘目标检测领域的关键架构改进与性能基准测试结果。YOLO26于2025年9月发布,是YOLO系列中最新、最先进的模型,专为在边缘设备和低功耗设备上实现高效能、高精度和部署就绪性而设计。论文依次详细介绍了YOLO26的架构创新,包括移除分布焦点损失(DFL)、采用端到端无非极大值抑制(NMS)推理、集成渐进式损失(ProgLoss)和小目标感知标签分配(STAL),以及引入MuSGD优化器以实现稳定收敛。

Limiiiing的博客 1682

ESP32-C3入门教程 环境篇②——Windows开发环境准备

文章目录一、注意事项二、下载ESP-IDF工具安装器三、安装内容四、详细安装步骤报错处理 一、注意事项 请注意 ESP-IDF 和 ESP-IDF 工具的安装路径不能超过 90 个字符,安装路径过长可能会导致构建失败。 Python 或 ESP-IDF 的安装路径中一定不能包含空格或括号。 除非操作系统配置为支持 Unicode UTF-8,否则 Python 或 ESP-IDF 的安装路径中也不能包括特殊字符(非 ASCII 码字符、中文字符) 二、下载ESP-IDF工具安装器 ESP-IDF Win

5242

机器人中的数值优化(一)—— 数学优化、凸集合与凸函数

本系列文章主要是我在学习《数值优化》过程中的一些笔记和相关思考,主要的学习资料是深蓝学院的课程《机器人中的数值优化》和高立编著的《数值最优化方法》等,本系列文章篇数较多,不定期更新,上半部分介绍无约束优化,下半部分介绍带约束的优化,中间会穿插一些路径规划方面的应用实例。

慕羽★的博客 2521

linux系统宝塔服务器temp文件夹里总是被上传病毒php脚本

服务器时不时的会发送短信说你服务器有病毒,找到了这个tmp文件,删除了之后又有了。确实是有很多人就这么无聊,每天都攻击你的服务器。找了很久的原因,网上也提供了一大堆方法,但都是很简陋的答案,具体怎么操作并没有说。没办法只能自己去排查这个问题。从两个角度来考虑,第一是服务器系统问题,比如宝塔的漏洞。但一时半会看不出问题来。只能去排查自己的项目代码。最后了解到代码确实是存在漏洞的。但代码中也确实了很多的校验,为什么会存在漏洞了?这就不得不从上传的过程开始说起。

guiplan 1496

蓝牙模块HM-10手册

蓝牙模块HM-10手册,该手册对蓝牙模块HM-10进行了详细的介绍和使用方法以及一些AT指令。

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,

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")

IDEA的使用指南

IDEA基于java的使用手册,可以最快速的上手,在使用中不断的丰富自己的使用技巧.

上一篇: Starting Tomcat v8.0 Server at localhost.....(Eclipse启动时端口号被占用)
下一篇: JSP上传图片,不重启服务器
少年不再NianShao
博客等级 码龄8年 8粉丝 25原创
评论 1
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符
 
 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