小编Jig*_*aik的帖子

我正在尝试设计一个rest api，下面是我的控制器代码。

当我调用http://localhost:8080/ 时，响应很好，但是如果我点击http://localhost:8080/api/ca它会触发javax.servlet.ServletException: No adapter for handler [...CaDetailController@48224381]: The DispatcherServlet configuration needs to include a HandlerAdapter that supports this handler

@RestController("/api")
public class CaDetailController {

    private static final Logger logger = LoggerFactory.getLogger(GetClassLoader.class.getClass());

    @Autowired
    CaService caService;

    @RequestMapping(path = "/ca", method = RequestMethod.GET)
    public @ResponseBody List<CaDetail> getCorporateActions() {
        logger.info("CaDetailController.findAllCaDetails()");
        return caService.findAllCaDetails();
    }

    @RequestMapping(path = "/ca/{caId}", method = RequestMethod.GET)
    public @ResponseBody List<CaDetail> getCorporateActions(@PathParam("caId") long caId) {
        logger.info("CaDetailController.getCorporateActions() : caId : " + caId);
        return caService.findAllCaDetails();
    }
} …

我正在使用bootstrap 3硅藻土选择器小部件,但我无法控制它的位置.现在,当我不使用水平和垂直选项时,小部件显示在我的页面底部,但是当我使用水平和垂直选项时,我得到一个错误,说水平不是有效选项.

这些选项对我不起作用:

水平:'右',
垂直:'顶'

这是我的代码:

enter code here
<input type="text" value="<fmt:formatDate value="${visitDetail.visitDate }" pattern="dd-MM-yyyy hh:mm aaa" />" name="patient.visitDetails[${status.index}].visitDate" class="form-control" id="visitDate${status.index}" placeholder="visitDate${status.index}"> 


<script type="text/javascript">
    $(function () {
        $("#visitDate${status.index}").datetimepicker({
            showTodayButton: true,
            inline: false,
            format: "DD-MM-YYYY hh:mm A",
            sideBySide: true,
            horizontal: 'right',
            vertical: 'top'
        });
    });
</script>

我正在尝试使用LocalDateTime.parse该方法解析日期，但是我遇到了以下错误。如果我使用SimpleDateFormat简单的日期格式对象，则日期字符串将被解析。

有没有人遇到这个问题！从DateFormat和解析之间有什么区别LocalDateTime

package com.example.demo;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;

public class App {

    public static final String DATE_TIME_PATTERN = "dd-MM-yyyy hh:mm:ss.SSS";

    public static final DateFormat DATE_TIME_FORMAT = new SimpleDateFormat(DATE_TIME_PATTERN);

    public static final String SEPERATOR = ",";

    public static void main(String[] args) {
        try {
            Date date = DATE_TIME_FORMAT.parse("12-03-2019 10:28:50.013");
            System.out.println("date : {} " + date);

            LocalDateTime startTimestamp = LocalDateTime.parse("12-03-2019 10:28:50.013", DateTimeFormatter.ofPattern(DATE_TIME_PATTERN)).plusNanos(1000000);
            System.out.println("startTimestamp : {} " + startTimestamp);
        } …

我在 EJB 3.1 中有 EJB，我试图在 JBoss EAP 6 中部署它，但是当我启动服务器时。它在 JNDI 名称中附加版本号，如下所示。

18:27:57,068 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-6) JNDI bindings for session bean named TestService in deployment unit subdeployment "TestGroup-war-3_0_0-SNAPSHOT.war" of deployment "TestGroup-ear-3_0_0-SNAPSHOT.ear" are as follows:

java:global/TestGroup-ear-3_0_0-SNAPSHOT/TestGroup-war-3_0_0-SNAPSHOT/TestService!org.pkg.ejb.local.CRMDataServiceLocal
java:app/TestGroup-war-3_0_0-SNAPSHOT/TestService!org.pkg.ejb.local.CRMDataServiceLocal
java:module/TestService!org.pkg.ejb.local.CRMDataServiceLocal
java:global/TestGroup-ear-3_0_0-SNAPSHOT/TestGroup-war-3_0_0-SNAPSHOT/TestService
java:app/TestGroup-war-3_0_0-SNAPSHOT/TestService
java:module/TestService

如何从 JNDI 名称中删除版本号“-3_0_0-SNAPSHOT”？我有 ejb-jar.xml，当我部署耳朵时，它被放置在 ejb jar 文件中。

为什么不将 bean 放入 applicationContext.xml 就不会调用 post 构造

这是我的类，其中包含 @PostConstruct 注释。

package org.stalwartz.config;

import javax.annotation.PostConstruct;
import javax.inject.Singleton;

@Singleton
public class PropertyLoader {

    @PostConstruct
    public void init() {
         System.out.println("PropertyLoader.init()");
    }
}

下面是我的 applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
 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.xsd 
 http://www.springframework.org/schema/mvc 
 http://www.springframework.org/schema/mvc/spring-mvc.xsd 
 http://www.springframework.org/schema/tx 
 http://www.springframework.org/schema/tx/spring-tx.xsd 
 http://www.directwebremoting.org/schema/spring-dwr
 http://www.directwebremoting.org/schema/spring-dwr/spring-dwr-3.0.xsd">

<dwr:annotation-config />
<dwr:annotation-scan base-package="org.stalwartz" scanDataTransferObject="true" scanRemoteProxy="true" />
<dwr:url-mapping />

<!--  <bean id="proeprtyLoader" class="org.stalwartz.config.PropertyLoader"></bean>  -->

<dwr:controller id="dwrController" debug="false">
    <dwr:config-param name="activeReverseAjaxEnabled" value="true" />
</dwr:controller>

<context:annotation-config>
    <context:component-scan base-package="org.stalwartz" annotation-config="true"></context:component-scan>
</context:annotation-config>

<mvc:annotation-driven />
...
... …

我正在尝试使用 ntlm Auth Scheme 使用 http 客户端从服务器下载 pdf 文件。

但是当我遇到错误时。当我使用 wget 和用户名和密码作为参数时，文件正在下载，但如果我使用相同的用户名和密码，它会使用 java 代码失败并显示 401。我正在使用 httpclient 4.2.2

Authentication error: No valid credentials provided (Mechanism level: No valid credentials provided 
(Mechanism level: Failed to find any Kerberos tgt))

下面是我使用 auth 下载 pdf 的代码。

 public ByteArrayOutputStream getFile1(String resourceURL) throws CRMBusinessException {
DefaultHttpClient httpclient = new DefaultHttpClient();
ByteArrayOutputStream tmpOut = null;
try {
  ICRMConfigCache cache = CacheUtil.getCRMConfigCache();
  String host = cache.getConfigValue(ConfigEnum.DOCUMENT_SOURCE_HOST_NAME.toString());
  String user = cache.getConfigValue(ConfigEnum.HTTP_USER_NAME.toString());
  String password = cache.getConfigValue(ConfigEnum.HTTP_PASSWORD.toString());
  String workstation = cache.getConfigValue(ConfigEnum.CLIENT_HOST_NAME.toString()); …

我收到以下错误:

Caused by: javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: Comparison method violates its general contract!
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101) [jboss-jsf-api_2.1_spec-2.1.28.SP1-redhat-1.jar:2.1.28.SP1-redhat-1]
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101) [jsf-impl-2.1.28.redhat-10.jar:2.1.28.redhat-10]
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) [jboss-jsf-api_2.1_spec-2.1.28.SP1-redhat-1.jar:2.1.28.SP1-redhat-1]
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786) [jboss-jsf-api_2.1_spec-2.1.28.SP1-redhat-1.jar:2.1.28.SP1-redhat-1]
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251) [jboss-jsf-api_2.1_spec-2.1.28.SP1-redhat-1.jar:2.1.28.SP1-redhat-1]
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) [jsf-impl-2.1.28.redhat-10.jar:2.1.28.redhat-10]
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.1.28.redhat-10.jar:2.1.28.redhat-10]
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [jsf-impl-2.1.28.redhat-10.jar:2.1.28.redhat-10]
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) [jboss-jsf-api_2.1_spec-2.1.28.SP1-redhat-1.jar:2.1.28.SP1-redhat-1]
    ... 29 more
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
    at java.util.TimSort.mergeHi(TimSort.java:899) [rt.jar:1.8.0_65]
    at java.util.TimSort.mergeAt(TimSort.java:516) [rt.jar:1.8.0_65]
    at java.util.TimSort.mergeForceCollapse(TimSort.java:457) [rt.jar:1.8.0_65]
    at java.util.TimSort.sort(TimSort.java:254) [rt.jar:1.8.0_65]
    at java.util.Arrays.sort(Arrays.java:1512) [rt.jar:1.8.0_65]
    at java.util.ArrayList.sort(ArrayList.java:1454) [rt.jar:1.8.0_65]
    at java.util.Collections.sort(Collections.java:175) [rt.jar:1.8.0_65]

下面是我的比较方法代码.vo1.getAttribute()返回java.util.DateObject.

    @Override
    public int compare(DateComparableVO …

在我正在阅读Java的书中,它通过使用写入文件并将其存储的程序来演示序列化.我收到一个奇怪的错误,我不知道如何阅读,它拒绝我访问创建.txt文件.这是错误:

Exception in thread "main" java.io.FileNotFoundException: C:\testFile.txt (Access is denied)
    at java.io.FileOutputStream.open(Native Method)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at serializableTests.MyProgram.main(MyProgram.java:18)

这是该计划的两个类:

用户类:

public class User implements Serializable {

    private static final long serialVersionUID = 4415605180317327265L;

    private String username;
    private String password;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

这是主要课程:

import java.io.File;
import java.io.FileOutputStream; …

是否可以在下面一行中使用Java8编写所有空字符串和空字符串检查的代码？

Map<Integer, Map<String, Object>> data = new HashMap<>(holdings.rowMap());

Set<Entry<Integer, Map<String, Object>>> entrySet = data.entrySet();
double transactedQuantity = 0;
for (Entry<Integer, Map<String, Object>> entry : entrySet) {
    Map<String, Object> value = entry.getValue();
    Object qty = value.get("quantity");
    if (qty != null && qty != "") {
        transactedQuantity += Double.valueOf(qty.toString());
    }
}

像下面这样

data.values().stream().filter((k,v) -> k.equals("quantity") && v != null && v != "").flatMapToDouble(...);

我是 Kafka 新手，尝试安装并运行控制台消费者，但出现错误java.lang.IllegalStateException: There are no in-flight requests for node -1

我尝试的环境如下

Kafka Version kafka_2.13-2.6.0
MacOS java11 Fails
MacOS java 1.8 Fails
Windows 10 Java11 Success

以下是我正在执行的详细步骤。相同的步骤适用于 Windows。

步骤 1 下载卡夫卡

我刚刚从https://www.apache.org/dyn/closer.cgi?path=/kafka/2.6.0/kafka_2.13-2.6.0.tgz下载了 Kafka

STEP 2 启动zookeeper服务，工作正常。

我用以下命令启动动物园管理员

bin % zookeeper-server-start.sh ../config/zookeeper.properties

这是动物园管理员日志

[2020-08-30 14:28:52,234] INFO Server environment:java.io.tmpdir=/var/folders/q7/khp8p9k14rzfs_zl52m57hlr0000gn/T/ (org.apache.zookeeper.server.ZooKeeperServer)
[2020-08-30 14:28:52,234] INFO Server environment:java.compiler=<NA> (org.apache.zookeeper.server.ZooKeeperServer)
[2020-08-30 14:28:52,234] INFO Server environment:os.name=Mac OS X (org.apache.zookeeper.server.ZooKeeperServer)
[2020-08-30 14:28:52,234] INFO Server environment:os.arch=x86_64 (org.apache.zookeeper.server.ZooKeeperServer)
[2020-08-30 14:28:52,234] INFO Server environment:os.version=10.15.6 (org.apache.zookeeper.server.ZooKeeperServer)
[2020-08-30 14:28:52,234] INFO Server …