Question

我正在尝试jhipster基于令牌的身份验证。它运作得很好。

现在，我想在不同的域上运行后端和前端代码。我怎么能这样做？

这就是我的尝试：

运行yo jhipster并选择基于令牌的身份验证选项：

Welcome to the JHipster Generator

? (1/13) What is the base name of your application? jhipster
? (2/13) What is your default Java package name? com.mycompany.myapp
? (3/13) Do you want to use Java 8? Yes (use Java 8)
? (4/13) Which *type* of authentication would you like to use? Token-based authentication (stateless, with a token)
? (5/13) Which *type* of database would you like to use? SQL (H2, MySQL, PostgreSQL)
? (6/13) Which *production* database would you like to use? MySQL
? (7/13) Which *development* database would you like to use? H2 in-memory with Web console
? (8/13) Do you want to use Hibernate 2nd level cache? Yes, with ehcache (local cache, for a single node)
? (9/13) Do you want to use clustered HTTP sessions? No
? (10/13) Do you want to use WebSockets? No
? (11/13) Would you like to use Maven or Gradle for building the backend? Maven (recommended)
? (12/13) Would you like to use Grunt or Gulp.js for building the frontend? Grunt (recommended)
? (13/13) Would you like to use the Compass CSS Authoring Framework? No

...

I'm all done. Running bower install & npm install for you
^C

将项目的两个副本设为jhipster/backend和jhipster/frontend

从后端和前端删除不必要的文件

rm -rf backend/.bowerrc
rm -rf backend/.jshintrc
rm -rf backend/bower.json
rm -rf backend/Gruntfile.js
rm -rf backend/package.json
rm -rf backend/src/main/webapp
rm -rf backend/src/test/javascript

rm -rf frontend/pom.xml
rm -rf frontend/src/main/java
rm -rf frontend/src/main/resources
rm -rf frontend/src/test/gatling
rm -rf frontend/src/test/java
rm -rf frontend/src/test/resources

在代码中进行更改以完全删除后端/前端依赖

frontend/Gruntfile.js

...
var parseVersionFromPomXml = function() {
    return '1.2.2.RELEASE';
};
...
browserSync: { ..., proxy: "localhost:8081" }

frontend/src/main/webapp/scripts/app/app.js

angular.module('jhipsterApp', [...])
.constant('API_URL', 'http://localhost:8080/')
.run( ... )

frontend/src/main/webapp/scripts/**/*.service.js

angular.module('jhipsterApp').factory(..., API_URL) {
    return $http.post(API_URL + 'api/authenticate', ...);
}

angular.module('jhipsterApp').factory('Account', function Account($resource, API_URL) {
    return $resource(API_URL + 'api/account', {}, {...});
}

// Make similar changes in all service files.

backend/pom.xml

删除yeoman-maven-plugin

backend/src/main/java/com/mycompany/myapp/SimpleCORSFilter.java

// Copied from here: https://spring.io/guides/gs/rest-service-cors/

@Component
public class SimpleCORSFilter implements Filter {
    public void doFilter(...) {
        ...
        response.setHeader("Access-Control-Allow-Origin", "*");
        ...
    }
}

生成

终端标签＃1： BACKEND

cd backend
mvn spring-boot:run

...
[INFO] com.mycompany.myapp.Application - Started Application in 11.529 seconds (JVM running for 12.079)
[INFO] com.mycompany.myapp.Application - Access URLs:
----------------------------------------------------------
        Local:          http://127.0.0.1:8080
        External:       http://192.168.56.1:8080
----------------------------------------------------------

终端标签＃2： FRONTEND

cd frontend/src/main/webapp
npm install -g http-server
http-server

Starting up http-server, serving ./ on: http://0.0.0.0:8081
Hit CTRL-C to stop the server

终端标签＃3： GRUNT

cd frontend
bower install
npm install
grunt serve

...
[BS] Proxying: http://localhost:8081
[BS] Access URLs:
 -------------------------------------
       Local: http://localhost:3000
    External: http://10.34.16.128:3000
 -------------------------------------
          UI: http://localhost:3001
 UI External: http://10.34.16.128:3001
 -------------------------------------

浏览http://localhost:3000/#/login

输入username:password作为admin:admin

我们的 BACKEND 标签显示为：

[DEBUG] com.mycompany.myapp.security.Http401UnauthorizedEntryPoint - Pre-authenticated entry point called. Rejecting access

显然，我做错了什么。它是什么？

Answer 1

当请求因CORS而失败时，后端没有可见错误。 HTTP请求实际上成功，但是在前端被javascript阻止。像这样的消息将出现在JS控制台中。

XMLHttpRequest cannot load http://localhost:8080/api/authenticate. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:9000' is therefore not allowed access.

您看到的错误消息实际上与身份验证有关。当您启用CORS时，您的JS将发送“飞行前”＆＃39;＆＃39;＆＃39;＆＃39;使用HTTP OPTIONS方法的请求。 JHipster未配置为全局允许OPTIONS方法。我在做同样的事情时遇到了同样的问题。修复非常简单：只需将此行添加到第一个com.mycompany.config.SecurityConfiguration条目之前（之前）的antMatchers。

.antMatchers(org.springframework.http.HttpMethod.OPTIONS, "/api/**").permitAll()

这将明确允许使用OPTIONS方法的所有请求。 OPTIONS方法在CORS中用作读取所有标头的方法，并查看CORS请求中允许的HTTP方法。

最后，在SimpleCORSFilter类中，您还应添加以下标题：

response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "86400"); // 24 Hours
response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, x-auth-token");

Answer 2

除了上面的xeorem的答案之外，我还必须修改parse-links-service.js来处理预检OPTIONS响应，它们没有＆＃34;链接＆＃34;响应标题：

var links = {};
if (!angular.isObject()) {
    // CORS OPTIONS responses
    return links;
}

if (header.length == 0) {
    throw new Error("input must not be of zero length");
}

// Split parts by comma
var parts = header.split(','); 

...

不是将API_URL添加到app.js，而是修改Gruntfile.js并将API_URL添加到DEV和PROD环境的ngConstants块中。

Answer 3

您可以使用Tomcat中的CORS过滤器将依赖项放在pom.xml：

中

   <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-catalina</artifactId>
        <version>8.0.15</version>
        <scope>provided</scope>
    </dependency>

使用您使用的任何版本的Tomcat。

在WebConfigurer中添加CORS过滤器初始化：

private void initCorsFilter(ServletContext servletContext, EnumSet<DispatcherType> disps) {
        log.debug("Registering CORS Filter");
        FilterRegistration.Dynamic corsFilter = servletContext.addFilter("corsFilter", new CorsFilter());
        Map<String, String> parameters = new HashMap<>();
        parameters.put("cors.allowed.headers", "Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers,Authorization");
        parameters.put("cors.allowed.methods", "GET,POST,HEAD,OPTIONS,PUT,DELETE");
        corsFilter.setInitParameters(parameters);
        corsFilter.addMappingForUrlPatterns(disps, false, "/*");
        corsFilter.setAsyncSupported(true);
    }

将此行放在WebConfigurer.onStartup(...)中，尽可能靠近顶部。

...
initCorsFilter(servletContext, disps);
...

Answer 4

我正在使用Jhipster版本4.14.5

我已将以下文件复制到Project-forntend文件夹：

.bowerrc
吞咽
pom.xml
yarn.lock
   gulpfile.js
readme.md

bower_components
.gitattributes
    src / main / web

bower.json
.gitignore
package.json
    target / www
然后运行：

纱线安装

下安装

gulp安装
然后将gulp / config.js文件更改为：

apiPort：8081

uri：'http://localhost：'
然后通过运行以下命令启动项目：

大口服务

Answer 5

在JHipster应用程序中分离前端和后端非常简单。如果要使用JHipster分别设置前端和后端应用程序，请按照以下步骤操作：

为前端和后端应用程序创建两个目录
- mkdir前端
- mkdir后端
将目录更改为前端并运行JHipster命令以仅创建前端模块
- cd前端
- jhipster --skip-server --db = sql --auth = jwt
- 如果一切正常，请运行 {{ Form::open(array( 'method' => 'POST', 'class' => 'form-horizontal form-label-left', 'route' => ['edit_settings'], 'id' => 'editSettingsForm', 'files' => true, 'novalidate' => true)) }} <div class="col-md-12 col-sm-12 col-xs-12"> @foreach($configList as $key => $cl) <div class="item form-group"> @php $caption = $cl['config_key']; $caption = str_replace('_', ' ', $caption); @endphp <label class="control-label col-md-3 col-sm-3 col-xs-12" for="config_key">@if($caption == 'emails'){{ 'Admin ' . ucfirst($caption) }}@else{{ ucfirst($caption) }}@endif <span class="required">*</span> </label> <div class="col-md-9 col-sm-9 col-xs-12"> {{ Form::hidden('config_key[]', $cl['config_key'], array( 'id' => 'config_key_' . $key, 'class' => 'form-control col-md-7 col-xs-12', 'data-validate-length-range' => '3,50', 'placeholder' => 'Config Key', 'required' => 'required' )) }} @if($cl['value_unit'] == 'date') {{ Form::select('config_value[]', array( 'd-m-Y' => 'd-m-Y', 'd/m/Y' => 'd/m/Y', 'd.m.Y' => 'd.m.Y', 'Y-m-d' => 'Y-m-d', 'Y/m/d' => 'Y/m/d', 'Y.m.d' => 'Y.m.d', 'm-d-Y' => 'm-d-Y', 'm/d/Y' => 'm/d/Y', 'm-d-Y' => 'm.d.Y' ), $cl['config_value'], array( 'class' => 'form-control col-md-7 col-xs-12', 'id' => 'config_value_' . $key )) }} @elseif($cl['value_unit'] == 'time') {{ Form::select('config_value[]', array( 'H:i:s' => 'H:i:s', 'H.i.s' => 'H.i.s', 'H:i' => 'H:i', 'H.i' => 'H.i', 'h:i:s A' => 'h:i:s A', 'h.i.s A' => 'h.i.s A', 'h:i:s a' => 'h:i:s a', 'h.i.s a' => 'h.i.s a', 'h:i A' => 'h:i A', 'h.i A' => 'h.i A', 'h:i a' => 'h:i a', 'h.i a' => 'h.i a' ), $cl['config_value'], array( 'class' => 'form-control col-md-7 col-xs-12', 'id' => 'config_value_' . $key )) }} @elseif($cl['value_unit'] == 'url') {{ Form::url('config_value[]', $cl['config_value'], array( 'id' => 'config_value_' . $key, 'class' => 'form-control col-md-7 col-xs-12', 'data-validate-length-range' => '3,50', 'placeholder' => 'Config value', 'required' => 'required' )) }} @else {{ Form::text('config_value[]', $cl['config_value'], array( 'id' => 'config_value_' . $key, 'class' => 'form-control col-md-7 col-xs-12', 'data-validate-length-range' => '3,50', 'placeholder' => 'Config value', 'required' => 'required' )) }} @endif </div> </div> @endforeach <div class="ln_solid"></div> <div class="form-group"> <div class="col-md-6 col-md-offset-3"> <a class="btn btn-primary back_new" href="{{url('/cpanel/dashboard/')}}">Back</a> <button id="send" type="submit" class="btn btn-success submit_new">Submit</button> </div> </div> </div> <div style="clear:both;"></div> {{ Form::close() }} 命令以运行您的前端应用程序。
我将mysql用于数据库，将JWT用于身份验证，如果要使用websocket，请添加：“ --websocket = spring-websocket”
现在，将目录更改为后端，然后运行JHipster命令以仅创建后端模块
- cd .. //由于我们当前正在访问后端目录
- cd后端
- jhipster --skip-client
- 在运行Spring Boot应用程序时运行后端应用程序

现在，您的前端和后端应用程序正在单独运行，并且前端通过REST API调用与后端应用程序进行协调。

将jhipster后端和前端分成两个项目？

5 个答案: