not able to get json passed into intent to another activity

I am using below code(in brief) In Global class named as Utilities public static final String KEY = "MY_KEY"; //Pojo Class ViewPojo mPojo; //ActivityDemo Intent intent = new Intent(this, MyActivity.class); intent.putExtra(Utilities.KEY, new Gson().toJson(mPojo)); //MyActivity pojoJson = getIntent().getStringExtra(Utilities.KEY); mPojo = new Gson().fromJson(p

无法让JSON传递到另一个活动的意图

我正在使用下面的代码(简而言之) 在名为Utilities的Global类中public static final String KEY =“MY_KEY”; //Pojo Class ViewPojo mPojo; //ActivityDemo Intent intent = new Intent(this, MyActivity.class); intent.putExtra(Utilities.KEY, new Gson().toJson(mPojo)); //MyActivity pojoJson = getIntent().getStringExtra(Utilities.KEY); mPojo = new Gson().fromJson(pojoJson, ViewPojo.

<c:foreach jsp iterate over list

I have searched several examples, still have not get. I am passing an List of GOOD object from controller into jsp pages. trying to loop over the list object, but its showing only one element repeatedly. should I use beans? If yes, could you provide more specific example for my case. <c:if test="${not empty listGood}"> <c:forEach var="ob" varStatus="status" items="${listGood}"

<c:foreach jsp迭代列表

我搜查了几个例子,仍然没有得到。 我将一个来自控制器的GOOD对象​​列表传递给jsp页面。 试图循环访问列表对象,但它只重复显示一个元素。 我应该使用豆吗? 如果是的话,你能否为我的案例提供更具体的例子。 <c:if test="${not empty listGood}"> <c:forEach var="ob" varStatus="status" items="${listGood}"> <tr> <td><c:out value="${ob.name}"/></td>

Saving data to TextView on different activity

On home screen of my app I want to have various TextViews that inititially hold only "..." for data, until user inputes his data. User inputes data in different activity that opens when CardView that holds all "..." values is clicked. I constantly get NullPointerException 02-26 16:14:33.106 26275-26275/hr.app.liftme.liftmehr E/AndroidRuntime: FATAL EXCEPTION: main

将数据保存到不同的活动上

在我的应用程序的主屏幕上,我希望有各种各样的TextViews,它们初始时只保存数据的“...”,直到用户输入他的数据。 用户输入不同活动中的数据,该数据在单击包含所有“...”值的CardView时打开。 我经常得到NullPointerException 02-26 16:14:33.106 26275-26275/hr.app.liftme.liftmehr E/AndroidRuntime: FATAL EXCEPTION: main Process: hr.app.li

Init method gets called twice java servlet

I want to call the init method when the application starts. <servlet> <servlet-name>servletTest</servlet-name> <servlet-class>com.gateway.Gateway</servlet-class> <load-on-startup>1</load-on-startup> </servlet> above is my code to do so. But strangely init method gets called twice. Below is my servlet code. Any help woul

Init方法被调用两次java servlet

我想在应用程序启动时调用init方法。 <servlet> <servlet-name>servletTest</servlet-name> <servlet-class>com.gateway.Gateway</servlet-class> <load-on-startup>1</load-on-startup> </servlet> 以上是我的代码。 但奇怪的init方法被调用两次。 以下是我的servlet代码。 任何帮助,将不胜感激。 @WebServlet("/Gateway") public class G

How to get local mapping of a servlet in its init method?

I've a servlet and it's init method must do some HTTP calls to itself. This is because I'm using an embedded app, that starts up and it's main interface it's a RESTful API. I can't and don't really want to use the internal classes, because they are not documented and difficult to use. So I prefere to use the REST API through local HTTP. So, I extended the servlet

如何在init方法中获得servlet的本地映射?

我有一个servlet,它的init方法必须对自己进行一些HTTP调用。 这是因为我使用的是嵌入式应用程序,它启动并且它是主界面,它是一个RESTful API。 我不能也不真的想要使用内部类,因为它们没有记录并且很难使用。 所以我希望通过本地HTTP使用REST API。 所以,我扩展了App附带的servlet,并修改了init方法,以便它启动一个线程并对它自己进行一些HTTP调用。 目前我硬连线“ http://localhost:port/servlet/mapping/ ”作为路

How can I run servlet without user interacting

I want to excute a servlet to get server name,server port and ContextPath from request. But I don't want to invoke servlet by user interacting. I want excute this servlet by Java code. I'm not sure it's possible. Please give me recommendation. Why not just simply make use of URL to request the servlet. For more sophisticated use try HttpClient. If you mean you just want to e

我如何在没有用户交互的情况下运行servlet

我想要执行一个servlet来从请求中获取服务器名称,服务器端口和ContextPath。 但我不想通过用户交互来调用servlet。 我想通过Java代码来执行这个servlet。 我不确定这是可能的。 请给我推荐。 为什么不只是简单地使用URL来请求servlet。 对于更复杂的使用尝试HttpClient。 如果你的意思是你只是想执行一些代码来从请求中提取信息,你为什么要调用一个servlet? 只需在某处编写一个方法,然后调用它。 您还可以使用S

ServletContext getContextPath()

I checked the javadocs of the Tomcat library I have included under my Netbeans project, and when I deploy the code works fine, but when I do a clean-build of my web project I get a "cannot find symbol" on the getContextPath() method of the ServletContext interface It's driving me completely insane because in order to run my tests and so on I have to first deploy, then test, if I c

ServletContext getContextPath()

我检查了我在Netbeans项目中包含的Tomcat库的javadoc,并且当我部署代码时工作正常,但是当我执行我的web项目的clean-build时,我在getContextPath()上得到了“无法找到符号” ServletContext接口的方法 这使我完全疯了,因为为了运行我的测试等,我必须先进行部署,然后进行测试,如果我进行了清理和构建,或者清理并运行测试,则会出现此错误... 任何人有任何线索可能导致这个问题? 有我需要更新的图书馆吗? 我怀疑它

Converting spring XML file to spring @Configuration class

Following the question Understanding Spring @Autowired usage I wanted to create a complete knowledge base for the other option of spring wiring, the @Configuration class. Let's assume I have a spring XML file that looks like this: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance

将Spring XML文件转换为Spring @Configuration类

在了解Spring @Autowired用法之后,我想为弹簧布线的另一个选项( @Configuration类)创建一个完整的知识库。 假设我有一个spring XML文件,如下所示: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframewor

How to autowire a Spring bean within a controller when testing?

I have a Spring test : @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("classpath:my-context.xml") public class MyTest { @Test public void testname() throws Exception { System.out.println(myController.toString()); } @Autowired private MyController myController; } This works fine when myController is defined in same class

测试时如何在控制器中自动装入Spring bean?

我有一个春季测试: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("classpath:my-context.xml") public class MyTest { @Test public void testname() throws Exception { System.out.println(myController.toString()); } @Autowired private MyController myController; } 当myController被定义在与MyTest相同的类中时,这工作正常,但是如

how to proxy an interface using spring like spring data jpa?

there is on interface and no implementation. Interface Test{ @MyAnnotation pubilc void sayHello(); } and i want to using spring to proxy that and let it can be autowired in other beans ,like Class App{ @Autowired Test test; } and in some proxy class i will handle invoke of 'sayHello' by some custom actions according to its annotation . so how to config the spring xml file

如何使用春季数据jpa代理一个接口?

有界面,没有实现。 接口测试{ @MyAnnotation pubilc void sayHello(); } 我想用spring代理它,并让它可以在其他bean中自动装配,比如 Class App { @Autowired测试测试; } 并且在一些代理类中,我将根据其注释来处理一些自定义操作对'sayHello'的调用。 那么如何配置spring xml文件以及如何编写一些“MethodInvokeHandler”类呢? 我想添加一些配置到spring xml中,并指定“base-package”来扫描这些接口