java-Java获取http请求返回json格式数据异常—

Java获取http请求返回json格式数据异常

java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at com.elan.webservers.HttpRequestUtil.getHttp(HttpRequestUtil.java:64)
at com.elan.webservers.HttpRequestUtil.main(HttpRequestUtil.java:19)

一直提示连接超时，请问下有什么解决的方法么？

// 开始连接请求
conn.connect(); //这行为异常提示行

编辑于：2017.08.31 09:40 发布于：2017.08.31 06:07

http java

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14个回答

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将Socket超时时间改大一点就可以了

发布于：2017.08.31 06:11

评论 8 |

| 已采纳

: 过客00 回复MrLuo93: 我按你的参数，给返回{"status":0,"msg":"\u516c\u94a5\u9519\u8bef"}; 大约 3 年之前回复

: 过客00 回复MrLuo93: 我写过一个httpclient工具类，刚才加了一个测试类，你拿去用吧，http://pan.baidu.com/s/1qY3CV3Que35; 大约 3 年之前回复

确保网络是通的，url可请求到。如果确保可以访问到，调大时间

发布于：2017.08.31 06:23

评论 1 |

你这是文不对题，跟请求json有啥关系，你这是服务器请求超时了，一个是你调试好自己的网络，确保网络没毛病，在一个在网络请求的代码里把
超时时间设置为20秒以上，还有就是你要确保你要请求的服务器没毛病吧，看你上面说的估计大部分可能是服务器出错了，连不上了

发布于：2017.08.31 06:23

评论 1 |

网络没问题。 conn.setReadTimeout(3600000); // 设置超时时间为一小时还是一样。

java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at com.elan.webservers.HttpRequestUtil.getHttp(HttpRequestUtil.java:64)
at com.elan.webservers.HttpRequestUtil.main(HttpRequestUtil.java:19)