我尝试使用从API称J-加莱得到结果,然后出来把结果在网页上,我写在客户端的所有代码,但它不能编译权,不知道为什么?请帮忙。源代码象下面这样:GWT客户端“抛出异常”的原因compling问题
有出现没有明显的错误,但它不能是成功编译.....非常感谢:
公共无效onModuleLoad(){// 创建库存数据表。 stocksFlexTable.setText(0,0,“Type”); stocksFlexTable.setText(0,1,“Name”);
// Assemble Add Stock panel.
addPanel.add(newSymbolTextBox);
addPanel.add(addStockButton);
// Assemble Main panel.
mainPanel.add(stocksFlexTable);
mainPanel.add(addPanel);
mainPanel.add(lastUpdatedLabel);
// Associate the Main panel with the HTML host page.
RootPanel.get("stockList").add(mainPanel);
// Move cursor focus to the input box.
newSymbolTextBox.setFocus(true);
//在添加按钮上监听鼠标事件。 addStockButton.addClickHandler(新clickHandler事件(){ 公共无效的onClick(ClickEvent事件){
try {
addStock();
} catch (Exception e) {
e.printStackTrace();
}
}
});
// Listen for keyboard events in the input box.
newSymbolTextBox.addKeyPressHandler(new KeyPressHandler() {
public void onKeyPress(KeyPressEvent event) {
if (event.getCharCode() == KeyCodes.KEY_ENTER) {
try {
addStock();
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
private void addStock() throws Exception {
final String url_s = newSymbolTextBox.getText().toUpperCase().trim();
newSymbolTextBox.setFocus(true);
newSymbolTextBox.setText("");
int row = stocksFlexTable.getRowCount();
CalaisClient client = new CalaisRestClient("ysw5rx69jkvdnzqf6sgjduqj");
System.out.print("read success...\n");
URL url = new URL(url_s);
CalaisResponse response = client.analyze(url);
for (CalaisObject entity : response.getEntities()) {
System.out.println(entity.getField("_type") + ":"
+ entity.getField("name"));
stocks.add(entity.getField("_type"));
stocksFlexTable.setText(row, 0, entity.getField("_type"));
stocksFlexTable.setText(row, 1, entity.getField("name"));
}
for (CalaisObject topic : response.getTopics()) {
System.out.println(topic.getField("categoryName"));
}
}
}
请加上你,这将有助于回答你的问题的错误。 – 2010-12-08 14:32:33