小编Glo*_*tor的帖子

是空的Arraylist(以null为其项)被视为null？所以,基本上下面的陈述是正确的:

if (arrayList != null) 

谢谢

我正在尝试模拟Apache HttpClient接口,以便模拟下面提到的一个方法来返回一个存根的JSON对象作为响应.

HttpResponse response = defaultHttpClient.execute(postRequest); 

有人可以通过一些示例代码建议如何实现这一目标吗？非常感谢您的帮助.

谢谢

我正在使用jdbcTemplate.queryForList以下列方式执行命名查询:

List<Conversation> conversations = jdbcTemplate.queryForList(
            SELECT_ALL_CONVERSATIONS_SQL_FULL,
            new Object[] {userId, dateFrom, dateTo});

SQL查询是:

private final String SELECT_ALL_CONVERSATIONS_SQL_FULL = 
    "select conversation.conversationID, conversation.room, " +
    "conversation.isExternal, conversation.startDate, " +
    "conversation.lastActivity, conversation.messageCount " +
    "from openfire.ofconversation conversation " +
    "WHERE conversation.conversationid IN " +
    "(SELECT conversation.conversationID " +
    "FROM openfire.ofconversation conversation, " +
    "openfire.ofconparticipant participant " +
    "WHERE conversation.conversationID = participant.conversationID " +
    "AND participant.bareJID LIKE ? " +
    "AND conversation.startDate between ? AND ?)";

但是,当以下列方式提取列表的内容时:

for (Conversation conversation : conversations) {
builder.append(conversation.getId());
            builder.append(","); …

在我的java代码中,我需要向具有3个标头的特定URL发送http post请求:

URL: http://localhost/something
Referer: http://localhost/something 
Authorization: Basic (with a username and password)
Content-type: application/json

这将返回一个响应,其中包含一个JSON"key":"value"对,然后我需要以某种方式解析以将键/值(Alan/72)存储在MAP中.响应是(当使用SOAPUI或Postman Rest时):

    {
    "analyzedNames": [
        {
            "alternate": false               
        }
    ],
    "nameResults": [
        {
            "alternate": false,            
            "givenName": "John",           
            "nameCategory": "PERSONAL",
            "originalGivenName": "",
            "originalSurname": "",           
            "score": 72,
            "scriptType": "NOSCRIPT",            
        }
    ]
}

我可以使用SOAPUI或Postman Rest来做到这一点,但是如何在Java中执行此操作,因为我收到错误:

****DEBUG main org.apache.http.impl.conn.DefaultClientConnection - Receiving response: HTTP/1.1 500 Internal Server Error****

我的代码是:

    public class NameSearch {

        /**
         * @param args
         * @throws IOException 
         * @throws ClientProtocolException 
         */
        public static void main(String[] args) throws …

我希望单独记录在同一个类中生成的特定消息.那么,如何在同一个类中创建2种不同类型的记录器.目前,Properties文件看起来像

log4j.rootCategory=DEBUG, O

# Stdout
log4j.appender.O=org.apache.log4j.ConsoleAppender
log4j.appender.O.layout=org.apache.log4j.PatternLayout
log4j.appender.O.layout.ConversionPattern=[%d{ISO8601}]%5p%6.6r[%t]%x - %C.%M(%F:%L) - %m%n

# File
log4j.appender.MESSAGE=org.apache.log4j.RollingFileAppender
log4j.appender.MESSAGE.File=target/logs/messages.log
# Control the maximum log file size
log4j.appender.MESSAGE.MaxFileSize=1000KB
# Archive log files (one backup file here)
log4j.appender.MESSAGE.MaxBackupIndex=100
log4j.appender.MESSAGE.layout=org.apache.log4j.PatternLayout
log4j.appender.MESSAGE.layout.ConversionPattern=[%d{ISO8601}]%5p%6.6r[%t]%x - %C.%M           (%        F:%    L) - %m%n
log4j.appender.MESSAGE.

log4j.category.failedMessagesLog=INFO, MESSAGE

我正在使用我的代码中的日志记录: - /**Logger.*/

Logger logger = Logger.getLogger(MyClass.class);
Logger msgLogger = Logger.getLogger("MESSAGE");

经过测试,我得到一个空的日志文件(messages.log).有什么建议？？

我有一个存根JSON OBJECT但需要使用Mockito模拟以下内容:

HttpResponse response = defaultHttpClient.execute(postRequest);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuilder result = new StringBuilder();
while ((line = rd.readLine()) != null) {
    result.append(line);        
}
JSONObject jsonResponseObject = new JSONObject(result.toString()); 

我创建了以下Mocks:

@Mock
    private HttpClient mockHttpClient;
    private HttpPost mockHttpPost;
    private HttpResponse mockHttpResponse;
    private HttpEntity mockHttpEntity; 
    private InputStream mockInputStream;
    private InputStreamReader mockInputStreamReader;
    private BufferedReader mockBufferedReader;

并有以下when声明:

    Mockito.when(mockHttpClient.execute(mockHttpPost)).thenReturn(mockHttpResponse); 
    Mockito.when(mockHttpResponse.getEntity()).thenReturn(mockHttpEntity);
    Mockito.when(mockHttpEntity.getContent()).thenReturn(mockInputStream);

问题:我是否需要创建所有这些'when'语句,如果是,那么我需要创建哪些其他语句才能获得存根JSON？

有什么建议吗？

谢谢

我第一次使用Mockito和PowerMock,我在以下行运行下面的代码时遇到错误:

MockitoAnnotations.initMocks(SearchTest.class);

错误是:

java.lang.ExceptionInInitializerError
    at org.mockito.internal.exceptions.stacktrace.ConditionalStackTraceFilter.<init>(ConditionalStackTraceFilter.java:17)
    at org.mockito.exceptions.base.MockitoException.filterStackTrace(MockitoException.java:30)
    at org.mockito.exceptions.base.MockitoException.<init>(MockitoException.java:19)
    at org.mockito.exceptions.misusing.MockitoConfigurationException.<init>(MockitoConfigurationException.java:18)
    at org.mockito.internal.configuration.ClassPathLoader.loadImplementations(ClassPathLoader.java:145)
    at org.mockito.internal.configuration.ClassPathLoader.findPluginImplementation(ClassPathLoader.java:110)
    at org.mockito.internal.configuration.ClassPathLoader.findPlatformMockMaker(ClassPathLoader.java:106)
    at org.mockito.internal.configuration.ClassPathLoader.<clinit>(ClassPathLoader.java:59)
    at org.mockito.internal.configuration.GlobalConfiguration.createConfig(GlobalConfiguration.java:38)
    at org.mockito.internal.configuration.GlobalConfiguration.<init>(GlobalConfiguration.java:32)
    at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:94) 
Caused by: java.lang.NullPointerException

测试类的代码是:

    import org.apache.http.HttpEntity;
    import org.apache.http.HttpResponse;
    import org.apache.http.client.HttpClient;
    import org.apache.http.client.methods.HttpPost;
    import org.junit.Assert;
    import org.junit.BeforeClass;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.junit.runners.Parameterized.Parameters;
    import org.mockito.Matchers;
    import org.mockito.Mock;
    import org.mockito.Mockito;
    import org.mockito.MockitoAnnotations;
    import org.powermock.api.mockito.PowerMockito;
    import org.powermock.core.classloader.annotations.PrepareForTest;
    import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(Parameterized.class)
@PrepareForTest(InputStreamReader.class)

public class SearchTest {   
    private String preFile;
    private String expectedPreFile;
    private String postFile;
    private String expectedpostFile; …

什么是字符串集合(Collection)和简单的普通集合之间的主要区别？

作为开发人员,我是单元测试的新手,并且需要编写测试用例来对以下代码进行单元测试.有人可以帮助我,并给我一些关于如何在eclipse中编写单元测试的指针.

private void handle(final DocumentEvent e) { 
    Document doc = e.getDocument(); 
    try { 
       String text = e.getDocument().getText(0, doc.getLength()); 

       if (text.length() >= maxMessageSize) { 
            try { 
               component.getHighlighter()
                        .addHighlight(maxMessageSize, text.length() + 1, painter); 
            } catch (BadLocationException ex) { 
               System.out.println(ex.getMessage()); 
            } 
       } else { 
            component.getHighlighter().removeAllHighlights(); 
       } 
    } catch (BadLocationException e1) { 
       System.out.println(e1.getMessage()); 
    } 
} 

谢谢

更新

由于某种原因,当我运行测试用例时,我根本没有得到任何报道.我在这里做错了什么？进一步的研究表明我需要使用test.perform()方法来调用我想要测试的方法.这是正确的吗？你能建议吗？这是代码:

public class TestMaxLength {
  static final int maxMessageSize = 125;
  JTextPane textPane = new JTextPane();
  //***EasyMock varibles****
  private JTextComponent mockComponent;
  private MaxLength classUnderTest;
  private DocumentEvent mockEvent; …