所以我想做的是当我的 Jsoup 连接超时时,我想弹出一个警报对话框。现在它什么也没做。它只是跳过那里的错误,不会捕获超时异常或崩溃。我是 java 新手,所以我不确定如何捕获这个 sockettimeoutexception 并将其重新路由到另一个方法。当 jsoup 超时时,有人可以告诉我如何使用另一种方法吗?
private void waterLevel() {
// TODO Auto-generated method stub
try {
levelDoc = Jsoup.connect("http://waterdata.usgs.gov/va/nwis/uv?site_no=02037500roop").timeout(3000).get();
} catch (SocketTimeoutException a) {
Log.e("MyAPP", "Exception----------A!", a);
a.printStackTrace();
alertdialog();
} catch (Exception e) {
Log.e("MyAPP", "Exception----------E!", e);
}
for (Element table : levelDoc.select("table[id=table_07_00065]")) {
String tableText = table.text();
depthArray = tableText.split(" ");
waterLevel = Double.parseDouble(depthArray[4]);
tvWaterLevel.setText(depthArray[4]+"FT");
if(waterLevel >= 5.0 && waterLevel < 9.0){
tvAlert.setText("LIFE JACKET REQUIRED");
}
else if (waterLevel >= 9.0){
tvAlert.setText("HIGH WATER PERMIT REQUIRED");
}
else{
tvAlert.setText("");
}
}
}
所以我添加了更改的代码,它给了我想要的东西:
private void waterLevel() {
// TODO Auto-generated method stub
try {
levelDoc = Jsoup.connect("http://waterdata.usgs.gov/va/nwis/uv?site_no=02037500").timeout(4000).get();
} catch (SocketTimeoutException a) {
Log.e("MyAPP", "Exception----------A!", a);
a.printStackTrace();
} catch (Exception e) {
Log.e("MyAPP", "Exception----------E!", e);
}
tvWaterLevel.setText("");
for (Element table : levelDoc.select("table[id=table_07_00065]")) {
String tableText = table.text();
depthArray = tableText.split(" ");
waterLevel = Double.parseDouble(depthArray[4]);
tvWaterLevel.setText(depthArray[4]+"FT");
if(waterLevel >= 5.0 && waterLevel < 9.0){
tvAlert.setText("LIFE JACKET REQUIRED");
}
else if (waterLevel >= 9.0){
tvAlert.setText("HIGH WATER PERMIT REQUIRED");
}
else{
tvAlert.setText("");
}
}
if (tvWaterLevel.length() < 1){
connectionAlarm();
}
}