= productservice.getproducts (); }}Angular's dependency injection model is flexible and easy to use because objects are injected only through the constructor. The injector can form a layer (each component has an injector), and the injected object does not need to be implemented as a singleton mode at the application level because it defaults to Singleton, as in spring.Inter-component communicationInter-co
. Children (). Data (' $ngControllerController ', controller); A } at - link (scope); - } - }; -}This is the instruction code of Ngview, here we mainly focus on two words:$element. HTML (locals. $template);//inserts the read HTML into the corresponding DOM objectvar link = $compile ($element. Contents ());//Compile HTML templateSo, the new template (trying) just needs to be newly compiled.All right, so let's do an auxiliary method (I just learned angular a lot of things have not com
Recently more interested in front-end testing, especially the Nodejs + Karma + Jasmine test for angular. Look around, make a record, intermittent updates.var app = Angular.module (' Application ', []);App.factory (' MyService ', function () {var service = {};Service.one = 1;Service.two = 2; return service;});2. How to test this angular service?
Using Angular.injector, call the application Module to find the service. Then it's the function of the test service.
Describe (' MyService
intrusive, the dependency relationship is not as intuitive as the XML description (this is of course for those who are accustomed to XML as a description of the person, you may be used to annotate the way, this varies )。
3. Download the jar PackageDownload the jar package https://code.google.com/p/google-guice/, or maven dependency, to load the Guice required jar package into the project in use:Maven Dependency Example: 4. Package DependencyDescription: Javax.inject-1.jar is required to me
the performance of Angular applications:
Reduce monitoring items (such as one-way binding on data that does not change)
Actively set the index (specify track by, the simple type defaults to its own index, the object defaults to use the $ $hashKey, for example change track by Item.id)
Reduce the amount of rendering data (such as paging, or take a small portion of the data at a time, and fetch it as needed)
the data is flattened (for example, in a tree structure, using a flattened stru
provide an HeroService instance first.See here, isn't it exciting to be familiar with constructor injection.The injector does not yet know how to create it HeroService . If we run our code now, Angular will fail with an error:Exception:no Provider for heroservice! (AppComponent-Heroservice) (Exception: a provider without heroservice!) (AppComponent-Heroservice))View CodeDo you have one?We also have to register a HeroService provider to tell the
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
This is because the jsp2.0 syntax has changed,
Set "
Change
'
② The following error occurs during capturing
[Root @ red-hat-9 nutch-0.9] # bin/nutch crawl URLs-Dir gucas-Depth 50-Threads 5> logs/logs1.log[Root @ red-hat-9 nutch-0.9] # Cat logs/logs1.logCrawl started in: gucasRooturldir = 5Threads = 10Depth = 50Injector: StartingInjector: crawldb: gucas/crawldbInjector: urldir: 5Injector: Convert
, Google: operate in Google search mode; U, URL check this URL; p, page, which mainly checks a single webpage; C, crawl, and site.Among them, the Google search mode options include-Q, -- quary query, and query to perform Google search;-S, -- start, -R, -- Results indicates the number of results required. The default value is 20.Iv. SQL power injector
SQL power injector helps penetration testers find and exp
a URL file in this directory and write some URLs, such
http://nutch.apache.org/
4.3 run the following command:
bin/nutch crawl urls -dir crawl -depth 3 -topN 5
Note that no index is provided here. If you want to create an index for the captured data, run the following command:
bin/nutch crawl urls -solr http://localhost:8983/solr/ -depth 3 -topN 5
5. What does the crawling process look like? 5.1 initialize crawldb and inject the initial URL
bin/nutch inject Usage:
com.google.inject.Module;/** * Created by xiaxuan on 15/7/10. */public class HelloGuiceModule implements Module{ @Override public void configure(Binder binder) { binder.bind(HelloGuice.class).to(HelloGuiceImpl.class); }}
This basically completes the injection. Now we can test this program.
The test is as follows:
package cn.com.guice;import cn.com.guice.HelloGuice;import cn.com.guice.HelloGuiceModule;import com.google.inject.Guice;import com.google.inject.Injector;/** * Create
this case, we need to useAngularJS BaratangAndng-inspectorThese two Chrome browser extensions help us view the Scope in real time. In addition, these two extensions have some other very useful functions.
AngularJS Baratang
Ng-inspector
3: capture Services)
We can use the definedngAppElementinjectorFunction to capture any Service or indirectly through anyng-scopeClass element to obtain the Service (Service ).
> angular.element(document.querySelector('html')).
this case, we need to useAngularJS BaratangAndng-inspectorThese two Chrome browser extensions help us view the Scope in real time. In addition, these two extensions have some other very useful functions.
AngularJS BaratangNg-inspector3: capture Services)We can use the definedngAppElementinjectorFunction to capture any Service or indirectly through anyng-scopeClass element to obtain the Service (Service ).> angular.element(document.querySelector('html')).i
processing method of a request.
M. Run () run the server.
API
(Main content translated from official documents)
The constant definitions below the constant are used to specify the environment where the application is located:
const ( Dev string = "development" Prod string = "production" Test string = "test")Variable
The following variables are used to control the application environment:
var Env = DevType beforefunc
Beforefunc type method is called before the responsewriter method is
the model, this command must be done by bringing the $apply method into the angular execution environment. Only the model changes in the $apply method are correctly angular counted. For example, a directive listens for DOM events, such as Ng-click, which must evaluate an expression in the $apply method.After evaluating the expression, the $apply method executes a $digest. In the $digest phase, scope checks all $watch listening expressions, comparing the current value to the old value. The dirty
represents the case of various paths, and finally, the. otherwise indicates that the path is current and does not have a routing configuration object set. At first glance this writes, has when, also has the otherwise, very complete very professional Ah!Script> //when initializing the app, introduce Ngroute as a dependency varapp=Angular.module ("myApp",['Ngroute']); //Routing ConfigurationApp. Config (['$routeProvider',function($routeProvider) {//reference $routeprovider is to use
same module is loaded two times the problem occurs. Angular 1.x multi-dependency injection mechanism in Angular 1, we can use different methods for injection in multiple places:In the link method, by location injection, by name injection in the direct definition, by name in the Controller method, and so on. what Angular 2 will do, and there is only one dependency injection mechanism in Angular 2: Injection through a type in the constructor. Constructor (keyutils:keyboardutils) {this. keyutils
", Bundlecontext)); } @Override public void Configure () {Final Binder binder = binder (); Todo:bind interface Binder.bind (Itemservice.class). to (Itemserviceimpl.class). in (SINGLETON); Binder.bind (Orderservice.class). to (Orderserviceimpl.class). in (SINGLETON); Todo:bind self class (without interface or base class) Binder.bind (Priceservice.class). in (Scopes.singleton); Todo:bind instance not class. Binder.bind (Runtimeservice.class). ToInstance (Ne
When the user taps the title
Div
Third, manipulating DOM elements
Function
Describe
Controller (name)
Communicates directly with the controller, which returns the controller that is bound to the elementIf this element does not exist, it will traverse the DOM and then find the nearest parent controlIf the parameter name is optional, it is used to specify the consent element on the otherIdentifier name, if provided, returns the controller o
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