Question

我的crashLytics报告中有很多条目：

java.net.UnknownHostException: Unable to resolve host "mobile.site.com": No address associated with hostname
       at java.net.InetAddress.lookupHostByName(InetAddress.java:394)
       at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
       at java.net.InetAddress.getAllByName(InetAddress.java:214)
       at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
       at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
       at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
       at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
       at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
       at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
       at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
       at com.spmkt.mobile.action.FormDAO.uploadFormsWithoutPics(SourceFile:70)
       at com.spmkt.mobile.action.FormDAO.uploadFormsWithPics(SourceFile:171)
       at com.spmkt.mobile.BaseActivity.sync_total(SourceFile:274)
       at com.spmkt.mobile.BaseActivity$1.run(SourceFile:170)
       at java.lang.Thread.run(Thread.java:856)

我想当我的服务器关闭，或者当android检测到互联网连接时出现，但是质量非常差，无法连接。

防止这种例外是否可行???

Answer 1

您可以在代码周围使用try-catch块。

https://docs.oracle.com/javase/tutorial/essential/exceptions/try.html

Answer 2

使用以前版本的lib（.jar）文件.in async-http-1.4.9给出了同样的错误。但1.4.7版本的代码工作正常

非致命异常：java.net.UnknownHostException无法解析主机“mysite.com”：没有与主机名关联的地址

2 个答案: