|  | @ -330,10 +330,9 @@ public class ImUtill {
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				|  |  |      */
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				|  |  |     public Boolean sessionIsExist(String sessionId) {
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				|  |  |         Boolean re = false;
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				|  |  |         String imAddr = im_host + "api/v2/sessions/isExist";
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				|  |  |         String url = im_host + "api/v2/sessions/isExist?session_id="+sessionId;
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				|  |  |         JSONObject params = new JSONObject();
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				|  |  |         params.put("session_id", sessionId);
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				|  |  |         String ret = HttpClientUtil.postBody(imAddr, params);
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				|  |  |         String ret = HttpClientUtil.get(url, "UTF-8");
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				|  |  |         JSONObject obj = null;
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				|  |  |         try {
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				|  |  |             obj = new JSONObject(ret);
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