我製作了一個實現PhaseListener
的類,並將每個階段的時間打印到日誌中。現在我想將其打印到JSF頁面上,以便我可以看到每個階段在頁面呈現時需要多長時間。如何在頁面上顯示JSF相位時序
我不知道這是否可能;也許這是一個雞與雞蛋的問題?
代碼
由於LaurentG告訴我,這是不可能實現的目標我找了。如果有人在尋找代碼時相雖然,這裏是應該做的一種方式:
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
public class LogPhaseListener implements PhaseListener {
private long startTimeP1;
private long startTimeP2;
private long startTimeP3;
private long startTimeP4;
private long startTimeP5;
private long startTimeP6;
private long timeP1;
private long timeP2;
private long timeP3;
private long timeP4;
private long timeP5;
private long timeP6;
private long timeAll;
@Override
public void afterPhase(PhaseEvent event) {
if (event.getPhaseId() == PhaseId.RESTORE_VIEW) {
timeP1 = (long) ((System.nanoTime() - startTimeP1) * 0.000001);
System.err.println("| Phase 1 Execution time -- RESTORE_VIEW -- " + timeP1 + "ms");
}
if (event.getPhaseId() == PhaseId.APPLY_REQUEST_VALUES) {
timeP2 = (long) ((System.nanoTime() - startTimeP2) * 0.000001);
System.err.println("| Phase 2 Execution time -- APPLY_REQUEST_VALUES -- " + timeP2 + "ms");
}
if (event.getPhaseId() == PhaseId.PROCESS_VALIDATIONS) {
timeP3 = (long) ((System.nanoTime() - startTimeP3) * 0.000001);
System.err.println("| Phase 3 Execution time -- PROCESS_VALIDATIONS -- " + timeP3 + "ms");
}
if (event.getPhaseId() == PhaseId.UPDATE_MODEL_VALUES) {
timeP4 = (long) ((System.nanoTime() - startTimeP4) * 0.000001);
System.err.println("| Phase 4 Execution time -- UPDATE_MODEL_VALUES -- " + timeP4 + "ms");
}
if (event.getPhaseId() == PhaseId.INVOKE_APPLICATION) {
timeP5 = (long) ((System.nanoTime() - startTimeP5) * 0.000001);
System.err.println("| Phase 5 Execution time -- INVOKE_APPLICATION -- " + timeP5 + "ms");
}
if (event.getPhaseId() == PhaseId.RENDER_RESPONSE) {
timeP6 = (long) ((System.nanoTime() - startTimeP6) * 0.000001);
timeAll = (long) ((System.nanoTime() - startTimeP1) * 0.000001);
System.err.println("| Phase 6 Execution time -- RENDER_RESPONSE -- " + timeP6 + "ms");
System.err.println("| Phase X Execution time -- ALL_PHASES -- " + timeAll + "ms");
}
}
@Override
public void beforePhase(PhaseEvent event) {
if (event.getPhaseId() == PhaseId.RESTORE_VIEW) {
startTimeP1 = System.nanoTime();
}
if (event.getPhaseId() == PhaseId.APPLY_REQUEST_VALUES) {
startTimeP2 = System.nanoTime();
}
if (event.getPhaseId() == PhaseId.PROCESS_VALIDATIONS) {
startTimeP3 = System.nanoTime();
}
if (event.getPhaseId() == PhaseId.UPDATE_MODEL_VALUES) {
startTimeP4 = System.nanoTime();
}
if (event.getPhaseId() == PhaseId.INVOKE_APPLICATION) {
startTimeP5 = System.nanoTime();
}
if (event.getPhaseId() == PhaseId.RENDER_RESPONSE) {
startTimeP6 = System.nanoTime();
}
}
@Override
public PhaseId getPhaseId() {
return PhaseId.ANY_PHASE;
}
}
而下面添加到安迪·吉布森網站上發現faces-config.xml
<lifecycle>
<phase-listener>package.name.LogPhaseListener</phase-listener>
</lifecycle>
原始代碼:http://www.andygibson.net/blog/tutorial/timing-jsf-requests-using-a-phase-listener/
快速和骯髒:通過Web服務提供日誌,您可以在客戶端使用JavaScript進行輪詢。 – mabi