IllegalStateException: closed okhttp報錯

今天使用http呼叫介面報錯 IllegalStateException: closed

2019-01-06 13:51:24.729 ERROR 8364 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: closed] with root cause

java.lang.IllegalStateException: closed
	at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:377)
	at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:371)
	at okhttp3.internal.Util.bomAwareCharset(Util.java:412)
	at okhttp3.ResponseBody.string(ResponseBody.java:173)

 

檢視程式碼

//判斷請求是否成功
            int status = response.code();
            logger.debug("請求狀態碼為：" + status);
            if(response.isSuccessful()){
                //列印服務端返回結果
                logger.debug("請求成功結果為：" + response.body().string());
                return response.body().string();
            }
 

可以看到 response.body().string() 出現了兩次 ， **response.body().string()只能請求一次,**請求過後,就會關閉,再次呼叫response.body().string()就會報close異常,所以String data = response.body().string();
使用變數接收資料,就可以解決這個問題。