我想使用Spring Cache功能,但我不知道这个模块有什么依赖.我的配置如下:
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
...
<mvc:annotation-driven />
<cache:annotation-driven />
但是<cache:annotation-driven />没有被认可.它给出了这个错误:
cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'cache:annotation-driven'
我认为这是因为我没有Spring模块的jar文件,因为我没有添加所有(我真正需要它时添加它们).
要使Spring Cache工作,需要哪些弹簧模块罐？或者我可以在哪里找到这些信息？
谢谢
我无法${}在我的.jsp页面上运行表达式.
displayAllCustomers.jsp
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<body>
<h3>Our Entire Customer Database</h3>
<ul>
<c:forEach items="${allCustomers}" var="customer">
<li>${customer.name}</li>
</c:forEach>
</ul>
</body>
</html>
调度员servlet.xml中
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<import resource="applicationContext.xml"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<bean name="/displayAllCustomers" class="mypackage.DisplayAllCustomersController">
<property name="customerManagementService" ref="customerManagementService" />
</bean>
</beans>
DisplayAllCustomersController.java
public class DisplayAllCustomersController {
private CustomerManagementService customerManagementService;
public void setCustomerManagementService(CustomerManagementService customerManagementService) {
this.customerManagementService = customerManagementService; …我想清理一个会话.下面是我编写的一些示例代码SessionStatus.
@Controller
@SessionAttributes(value={"sessAttr1","sessAttr2","sessAttr3"})
public class SessionController {
@RequestMapping(value="index")
public ModelAndView populateSession(){
ModelAndView modelView = new ModelAndView("home");
modelView.addObject("sessAttr1","This value is added in a session 1");
modelView.addObject("sessAttr2","This value is added in a session 2");
modelView.addObject("sessAttr3","This value is added in a session 3");
return modelView;
}
@RequestMapping(value="home1")
public String populateHomeSession(SessionStatus status){
status.setComplete();
return "home1";
}
}
当home1显示屏幕,我仍然可以看到会话对象没有得到清除.如果我试试这个:${sessAttr1 }那么我可以在home1屏幕上阅读会话值.
请说明为什么它不起作用.
编辑
我<a href="home1">Next</a>用来从一个屏幕导航到另一个屏幕.这与我面临的问题有什么关系吗？
我只使用JavaConfig.
我有以下声明:
@Bean
public static PropertySourcesPlaceholderConfigurer propertyPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
根据以下帖子,JavaConfig是必需的: 使用纯Java配置的Spring 3.2 @value注释不起作用,但Environment.getProperty可以正常工作
以下代码完美(许多@Values通过测试目的):
@Configuration
public class ActiveMQServerConfiguration {
@Value("${localhost.address}")
private String localHost;
@Value("${remotehost.address}")
private String remoteHost;
@Value("${localhost.port}")
private Integer localPort;
@Value("${remotehost.port}")
private Integer remotePort;
@Bean(name="connectionFactory")
@Conditional(LocalHostStatusCondition.class)
public ActiveMQConnectionFactory localConnectionFactory(
@Value("${localhost.protocol}") String protocol,
@Value("${localhost.address}") String host,
@Value("${localhost.port}") String port ){
System.out.println("protocol: "+protocol);
System.out.println("host: "+host);
System.out.println("port: "+port);
System.out.println("localHost: "+localHost);
System.out.println("localPort: "+localPort);
System.out.println("remoteHost: "+remoteHost);
System.out.println("remotePort: "+remotePort);
我可以在控制台/终端中看到
Α
protocol: tcp
host: 127.0.0.1
port: 61616
localHost: 127.0.0.1
localPort: 61616
remoteHost: …我正在使用" Amuthan G - Spring MVC初学者指南 " 这本书.目前我正在尝试使用下一个实现安全性security-context.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:security="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-4.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<security:http auto-config="true">
<security:intercept-url pattern="/products/add" access="ROLE_ADMIN" />
<security:form-login login-page="/login"
default-target-url="/products/add"
authentication-failure-url="/loginfailed"/>
<security:logout logout-success-url="/logout" />
</security:http>
<security:authentication-manager>
<security:authentication-provider>
<security:user-service>
<security:user name="Admin" password="Admin123" authorities="ROLE_ADMIN" />
</security:user-service>
</security:authentication-provider>
</security:authentication-manager>
</beans>
与安全相关的配置web.xml:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/webcontext/security-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
但是这个例子最终会IllegalArgumentException在打开安全路径时结束:
java.lang.IllegalArgumentException: Failed to evaluate expression 'ROLE_ADMIN' …我试图将数据源对象注入servlet.我有使用set方法打印的记录器.它适用于pre-inialization.但是当我请求servlet时,它给了我nullPointerException.
为什么会发生这种情况的任何建议？(我不认为这与我正在扩展的servlet有关)
这是applicationContext.xml
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<bean id="dataServlet" class="com.mycom.util.DataServlet">
<property name="dataSource" ref="dataSource" />
<property name="test" value="dataSource" />
</bean>
servlet
public class DataServlet extends DataSourceServlet {
...
@Autowired
public void setDataSource(DataSource dataSource) {
this.jdbcTemplate = new JdbcTemplate(dataSource);
logger.log(Level.INFO, "Inj: datasrc");
}
@Autowired
public void setTest(String test) {
this.test = test;
logger.log(Level.INFO, "Set Test {0}", this.test);
}
}
我在setTest设置了断点,它打破了@ pre-init.但是当实际对象被请求时.它不会破坏@testTest.
为什么会这样？(单例/范围问题有关吗？)
请指教!提前致谢!
这是如何从属性文件中在控制器中注入属性的最简单方法吗？然后需要在每个需要一些属性的控制器上导入属性文件.在像我这样的项目中有大约30个控制器,其中10个需要这个国家属性,我觉得它看起来很混乱.我是否理解@Value正确的使用方法？
@Controller
@RequestMapping(value = "/simple")
@ImportResource("classpath:/META-INF/properties-config.xml")
public class SimpleController {
private @Value("#{exampleProperties['simple.country']}") String country;
}
properties-config.xml (跳过xml和schema的东西)
<beans>
<util:properties id="exampleProperties" location="classpath:/simple.properties" />
</beans>
此外,当尝试在多个控制器中导入properties-config.xml资源时,我会收到此类消息.它似乎不是正确的方法,但我无法找到一个更好的..
01 Apr 2011 04:52:29,859 INFO org.springframework.beans.factory.support.DefaultListableBeanFactory []: Overriding bean definition for bean 'exampleProperties': replacing [Generic bean: class [org.springframework.beans.factory.config.PropertiesFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Generic bean: class [org.springframework.beans.factory.config.PropertiesFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
我有一个简单的控制器来处理带有几个参数的提交,而不是我考虑创建一个命令对象来存储它们.
在我的控制器中,我已经注释了参数,@RequestParam但我必须将这些值发送到视图,我不知道最好的方法是什么.
如果我有一个命令对象,我可以使用modelAttribute的html:form标签绑定的参数,但我不想创建命令对象只是一堆领域.
将值发送到视图的首选方式是什么(请求属性,模型属性......)？
我现在有一个恼人的问题.我的测试因autowire而失败.
无法通过autowire字段:private k.dao.CompanyDao k.dao.CompanyDaoTest.companyDao; 嵌套异常是org.springframework.beans.factory.NoSuchBeanDefinitionException:没有为依赖项找到类型为[k.dao.CompanyDao]的匹配bean:期望至少有一个bean可以作为此依赖项的autowire候选者.
我觉得@ContextConfiguration可以是问题吗？
考试
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:**/servlet-context.xml", "classpath:**/root-context.xml", "classpath:**/ccc-jpa.xml" })
public final class CompanyDaoTest {
@Autowired
private CompanyDao companyDao;
@Test
public void testTest() {
}
}
CompanyDao
public interface CompanyDao extends GenericDao<Company> {
}
CompanyDaoJpa
@Repository("companyDao")
public class CompanyDaoJpa extends GenericDaoJpa<Company> implements CompanyDao {
public CompanyDaoJpa() {
super(Company.class);
}
}
GenericDao
public interface GenericDao<T extends DomainObject> {
public T get(Long id);
public List<T> getAll();
public T save(T object);
public T delete(T object);
}
servlet的context.xml中
<annotation-driven …我在尝试启动我的应用程序时遇到了困难,我在几天内找到了我的错误,但我被困在代码中的某个地方并请求您的帮助谢谢
SingleTransactionsController
@Controller
public class SingleTransactionsController {
private SingleTransactionsService singleTransactionsService;
@RequestMapping(value="/disableUser/{sicil}", method=RequestMethod.GET)
public String disableUser(@PathVariable String sicil, Model model){
singleTransactionsService.disableUser(sicil);
model.addAttribute("message", sicil);
return "hello";
}
}
SingleTransactionsDAO
public interface SingleTransactionsDAO {
public void disableUser(String sicil);
}
SingleTransactionsDAOImpl
@Repository
public class SingleTransactionsDAOImpl implements SingleTransactionsDAO{
@Override
public void disableUser(String sicil) {
System.out.println(sicil);
}
}
SingleTransactionsService
public interface SingleTransactionsService {
public void disableUser(String sicil);
}
SingleTransactionsServiceImpl
@Service
public class SingleTransactionsServiceImpl implements SingleTransactionsService{
@Autowired
private SingleTransactionsDAO singleTransactionsDAO;
public void disableUser(String sicil) {
singleTransactionsDAO.disableUser(sicil);
} …spring-3 ×10
java ×6
spring ×5
spring-mvc ×5
spring-4 ×2
caching ×1
data-binding ×1
dependencies ×1
jsp ×1
spring-test ×1