异常查错java.net.SocketException: Connection reset

　　用httpclient访问后台接口报错java.net.SocketException: Software caused connection abort: recv failed，百度了一圈都说是由于服务器端关闭了连接，说是因为长连接的问题，于是我就把httpclient的请求设置为短连接

HttpPost httpPost=new HttpPost(url);
        httpPost.setProtocolVersion(HttpVersion.HTTP_1_0);
        httpPost.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE);

但是问题还是存在java.net.SocketException: Connection reset，后来想着是服务器端关闭了连接才想到代码里用了多线程，公用的代码没有做同步，于是把httpclient公用方法加synchronized关键字，问题解决