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此问题是上一个问题的扩展。 GWT Cannot compile the projectGWT RPC无法编译项目
请看看并告诉我它有什么问题。
客户端。
Twitter.java
package in.isuru.twitter.client;
import java.util.ArrayList;
import twitter4j.Tweet;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.RootPanel;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class Twitter implements EntryPoint {
private final TwitterServiceAsync searchService = GWT.create(TwitterService.class);
public void onModuleLoad() {
// Create a Flex Table
final FlexTable flexTable = new FlexTable();
FlexCellFormatter cellFormatter = flexTable.getFlexCellFormatter();
flexTable.addStyleName("cw-FlexTable");
flexTable.setWidth("32em");
flexTable.setCellSpacing(5);
flexTable.setCellPadding(3);
// Add some text
cellFormatter.setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_LEFT);
cellFormatter.setColSpan(0, 0, 2);
searchService.search("love", new AsyncCallback<ArrayList<Tweet>>() {
@Override
public void onFailure(Throwable caught) {
//Not yet completed.
}
@Override
public void onSuccess(ArrayList<Tweet> result) {
for (int i=0 ; i <result.size() ; i++) {
Tweet tweet = result.get(i);
String user = tweet.getFromUser();
String status = tweet.getText();
addRow(flexTable, user);
addRow(flexTable, status);
}
}});
flexTable.ensureDebugId("cwFlexTable");
RootPanel.get().add(flexTable);
}
/**
* Add a row to the flex table.
*/
private void addRow(FlexTable flexTable, String status) {
int numRows = flexTable.getRowCount();
flexTable.setText(numRows, 0, status);
flexTable.getFlexCellFormatter().setRowSpan(0, 1, numRows + 1);
}
/**
* Remove a row from the flex table.
*/
private void removeRow(FlexTable flexTable) {
int numRows = flexTable.getRowCount();
if (numRows > 1) {
flexTable.removeRow(numRows - 1);
flexTable.getFlexCellFormatter().setRowSpan(0, 1, numRows - 1);
}
}
}
TwitterService.java
package in.isuru.twitter.client;
import java.util.ArrayList;
import twitter4j.Tweet;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
@RemoteServiceRelativePath("search")
public interface TwitterService extends RemoteService {
ArrayList<Tweet> search(String searchTerm) throws IllegalArgumentException;
}
TwitterServiceAsync.java
package in.isuru.twitter.client;
import java.util.ArrayList;
import twitter4j.Tweet;
import com.google.gwt.user.client.rpc.AsyncCallback;
public interface TwitterServiceAsync {
void search(String searchTerm, AsyncCallback<ArrayList<Tweet>> callback) throws llegalArgumentException;
}
服务器端
package in.isuru.twitter.server;
import java.util.ArrayList;
import twitter4j.Query;
import twitter4j.QueryResult;
import twitter4j.Tweet;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import in.isuru.twitter.client.TwitterService;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
public class TwitterServiceImpl extends RemoteServiceServlet implements TwitterService {
/**
*
*/
private static final long serialVersionUID = 1L;
ArrayList<Tweet> tweets = new ArrayList<Tweet>();
@Override
public ArrayList<Tweet> search(String searchTerm) {
// The factory instance is re-useable and thread safe.
Twitter twitter = new TwitterFactory().getInstance();
Query query = new Query(searchTerm);
QueryResult result = null;
try {
result = twitter.search(query);
} catch (TwitterException e) {
e.printStackTrace();
}
for (Tweet tweet : result.getTweets()) {
//System.out.println(tweet.getFromUser() + ":" + tweet.getText());
tweets.add(tweet);
}
return tweets;
}
}
Twitter.gwt.xml
<?xml version="1.0" encoding="UTF-8"?>
<module rename-to='twitter'>
<!-- Inherit the core Web Toolkit stuff. -->
<inherits name='com.google.gwt.user.User'/>
<!-- Inherit the default GWT style sheet. You can change -->
<!-- the theme of your GWT application by uncommenting -->
<!-- any one of the following lines. -->
<inherits name='com.google.gwt.user.theme.clean.Clean'/>
<!-- <inherits name='com.google.gwt.user.theme.standard.Standard'/> -->
<!-- <inherits name='com.google.gwt.user.theme.chrome.Chrome'/> -->
<!-- <inherits name='com.google.gwt.user.theme.dark.Dark'/> -->
<!-- Other module inherits -->
<!-- Specify the app entry point class. -->
<entry-point class='in.isuru.twitter.client.Twitter'/>
<!-- Specify the paths for translatable code -->
<source path='client'/>
<source path='shared'/>
</module>
错误是
[DEBUG] [微博] - 验证新编译单元[TRACE] [微博]
- 寻找切入点类[错误] [twitter] - 文件错误：/ E：/workspace/Twitter/src/in/isuru/twitter/client/Twitter.java'
[错误] [twitter] - 第43行：没有源代码可用适用于
twitter4j.Tweet;你忘了继承一个必需的模块吗？ [错误]
[叽叽喳喳] - 中的错误
'文件：/ E：/workspace/Twitter/src/in/isuru/twitter/client/TwitterServiceAsync.java'
[错误] [微博] - 线路11：没有源代码可用于类型
twitter4j.Tweet;你忘了继承一个必需的模块吗？ [错误]
[微博] - 无法找到类型 'in.isuru.twitter.client.Twitter'
[错误] [微博] - 提示：以前的编译器错误可能做出
这种类型的不可用[错误] [提示：检查你的模块中的继承链;它可以不被继承了
所需模块或模块可以不被添加其源路径条目
正确[错误] [微博] - 无法从用户加载模块“微”
剂“的Mozilla/5.0（Windows NT的6.1）为AppleWebKit/535.7（KHTML，像
壁虎）铬/ 16.0.912.77 Safari浏览器/ 535.7' 在127.0.0.1:7901