|  | @@ -187,7 +187,7 @@ public class ImGroupServiceImpl extends ServiceImpl<ImGroupDao, ImGroup> impleme
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				|  |  |              clientType = "TEACHER";
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				|  |  |          }
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				|  |  |          if (StringUtils.isNotBlank(imConfig.getAppPrefix()) && !imUserId.startsWith(imConfig.getAppPrefix())) {
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				|  |  | -            imUserId = MessageFormat.format("{0}:{1}:{2}", imConfig.getAppPrefix(), userId, clientType);
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				|  |  | +            imUserId = MessageFormat.format("{0}_{1}_{2}", imConfig.getAppPrefix(), userId, clientType);
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				|  |  |          }
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				|  |  |          return imUserId;
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				|  |  |      }
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				|  | @@ -200,7 +200,7 @@ public class ImGroupServiceImpl extends ServiceImpl<ImGroupDao, ImGroup> impleme
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				|  |  |              clientType = "TEACHER";
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				|  |  |          }
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				|  |  |          if (StringUtils.isNotBlank(imConfig.getAppPrefix()) && !imUserId.startsWith(imConfig.getAppPrefix())) {
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				|  |  | -            imUserId = MessageFormat.format("{0}:{1}:{2}", imConfig.getAppPrefix(), userId, clientType);
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				|  |  | +            imUserId = MessageFormat.format("{0}_{1}_{2}", imConfig.getAppPrefix(), userId, clientType);
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				|  |  |          }
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				|  |  |          return imUserId;
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				|  |  |      }
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				|  | @@ -215,7 +215,7 @@ public class ImGroupServiceImpl extends ServiceImpl<ImGroupDao, ImGroup> impleme
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				|  |  |      @Override
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				|  |  |      public String analysisImUserId(String imUserId) {
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				|  |  |          if (StringUtils.isNotBlank(imConfig.getAppPrefix())) {
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				|  |  | -            return imUserId.replace(imConfig.getAppPrefix() + ":", "");
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				|  |  | +            return imUserId.replace(imConfig.getAppPrefix() + "_", "");
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				|  |  |          }
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				|  |  |          return imUserId;
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				|  |  |      }
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