Content-Length header already present解决办法

org.apache.http.client.ClientProtocolException
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:187)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
	at com.sydney.dreammon.utils.HttpClientBean.executeGetLeGaun(HttpClientBean.java:337)
	at com.sydney.dreammon.demo.DemoLeguan.main(DemoLeguan.java:24)
Caused by: org.apache.http.ProtocolException: Content-Length header already present
	at org.apache.http.protocol.RequestContent.process(RequestContent.java:97)
	at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:133)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:183)
	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
	... 5 more
null
stoping to debug..

Process finished with exit code 0

把httpPost 中的Content-Length 设置去掉

      httpPost.setHeader("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36");
            httpPost.setHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3");
            httpPost.setHeader("Accept-Encoding", "gzip, deflate, br");
            httpPost.setHeader("Accept-Language", "zh-CN,zh;q=0.9,en;q=0.8");
            httpPost.setHeader("Connection", "keep-alive");
//            httpPost.setHeader("Content-Length", "551");