我正在尝试使用异步响应构建REST Web服务.
我在网上查看了这个错误,但是,没有一个解决方案对我有用.我不确定如何去做.
这是REST服务的代码,它有AsyncResponse,@Suspended它取自pom.xml我指定的jar文件,我将在下面提供.问题是,在部署战争时,我得到一个例外:
java.lang.AbstractMethodError: javax.ws.rs.core.UriBuilder.uri(Ljava/lang/String;)Ljavax/ws/rs/core/UriBuilder;
javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:119)
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:651)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.50 logs
我的班级如下:
package com.crudapp;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.annotation.Generated;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
//import javax.ws.rs.core.UriBuilder;
import org.json.JSONArray;
import org.json.JSONObject;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.google.gson.Gson;
import com.mysql.jdbc.StringUtils;
import dao.User;
import dao.UserDAO;
import dao.UserDAOImpl;
import javax.ws.rs.container.AsyncResponse;
import javax.ws.rs.container.Suspended;
@Path("/crudpath") …我有一个mkyong MVC教程的修改版本.
我添加了一个业务层类Counter.
public class Counter {
private int i;
public int count()
{
return (this.i++);
}
//getters and setters and constructors
}
在mvc-dispatcher-servlet.xml中:
<bean id="counter" class="com.mkyong.common.Counter" scope="session">
<property name="i" value="0"></property>
</bean>
这很好用.
我现在想为这个类创建一个单元测试
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration()
public class TestCounter {
@Configuration
static class TestConfig
{
@Bean
public Counter c()
{
return new Counter();
}
}
@Autowired
private Counter c;
@Test
public void count_from1_returns2()
{
c.setI(1);
assertEquals(2, c.count());
}
}
如果我像这样运行它,我会得到的
SEVERE: Caught exception while allowing …这是我在Spring安全性中的UserDetails服务:
public class UserDetail implements UserDetailsService {
@Autowired
User_service user_service;
@Override
public UserDetails loadUserByUsername(String userId) throws UsernameNotFoundException {
boolean enabled = true;
boolean accountNonExpired = true;
boolean credentialsNonExpired = true;
boolean accountNonLocked = true;
com.domain.User user = user_service.findByUserName(userId);
return new User(user.getUserId(), user.getPassword(), enabled,
accountNonExpired, credentialsNonExpired,
accountNonLocked, this.getGrantedAuthorities(user));
}
public List<GrantedAuthority> getGrantedAuthorities(com.domain.User user) {
List<GrantedAuthority> role_name = null;
List<Role> roles = user.getRoles();
try {
for(Role role : roles) {
role_name.add(new GrantedAuthorityImpl(role.getName()));
}
} catch(Exception ex) {
System.out.println(ex.toString());
}
return role_name;
} …我正在尝试使用一些自定义内容（例如 logback 扩展）设置 docker 映像，因此我有一些 CLI 脚本，如下所示：
/subsystem=logging: remove()
/extension=org.jboss.as.logging: remove()
/extension=com.custom.logback: add()
/subsystem=com.custom.logback: add()
我还有 CLI 脚本来配置数据源池、主题、在keycloak-server子系统上添加一些 SPI 等。我将这些脚本放在/opt/jboss/startup-scripts目录中。但是，当我创建容器时，事情运行得不太好。脚本未按预期加载，并且 keycloak 启动时出现错误，未加载领域使用的密码策略等提供程序。
当我使用独立的 Keycloak 时，所有 SPI 提供程序都会正常加载，如下日志所示：
2019-07-25 18:27:07.906 WARN [org.keycloak.services] (ServerService Thread Pool -- 65) KC-SERVICES0047: custom-password-policy (com.custom.login.password.PasswordSecurityPolicyFactory) is implementing the internal SPI password-policy. This SPI is internal and may change without notice
2019-07-25 18:27:07.909 WARN [org.keycloak.services] (ServerService Thread Pool -- 65) KC-SERVICES0047: custom-event (com.custom.event.KeycloakServerEventListenerProviderFactory) is implementing the internal SPI eventsListener. This SPI is internal …这是我正在使用的一段代码,但是,我想生成关于我设置的字符串的随机响应.如何最好地接近这个？也许只是为了澄清,我需要随机输出"Hello","Good day","bye","告别",而不是列出它们的顺序.
public void run() {
String importantInfo[] = {
"Hello",
"Good day",
"bye",
"farewell"
};
Random random = new Random();
for (int i = 0; i < importantInfo.length; i++) {
drop.put(importantInfo[i]);
try {
Thread.sleep(random.nextInt(5000));
} catch (InterruptedException e) {}
}
drop.put("DONE");
}
使用Adobe CQ 5.5和JSP作为组件对象.在JSTL中返回结果有些麻烦.
我有一个自定义类的数组.
private static class Asset {
private String displayname;
public Asset(){
}
public String getDisplayName() {
return displayname;
}
public void setDisplayName(String displayname) {
this.displayname = displayname;
}
}
这个片段有效,但我想使用JSTL
for (int i = 0; i < assets.size(); i++) {
Asset c = assets.get(i);
out.println(c.displayname + "<BR>");
}
这就是我想要做的:
request.setAttribute("assetList",assets);
%>
<c:forEach items="${assetList}" var="item" varStatus="status">
<p>Title:</p>
${item.displayname}
</c:forEach>
JSTL确实返回了4个项目,例如工作示例,但是只要我添加${item.displayname},我就会收到错误.
Caused by: javax.el.PropertyNotFoundException: Property 'displayname' not found on type org.apache.jsp.apps.pnc_002dideas.components.homepage.slider.slider_jsp$Asset
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
at javax.el.BeanELResolver.property(BeanELResolver.java:279) …任何人都可以共享对LocalDateTime排序并从域对象列表中获取最大和最小记录的逻辑。
域对象
private int employeeNumber;
private LocalDateTime updatedDate;
第一记录
1.1,2016-07-09 00:00:00+0000
2.2,2017-10-06 23:25:37+0000
最大输出：2,2017-10-06 23：25：37 + 0000
最小输出：1,2016-07-09 00：00：00 + 0000