在Spring MVC中解决dao.DuplicateKeyException

当我运行代码时，我得到了这个错误。我怎么解决呢？谢谢

StringBuffer contactQuery =new StringBuffer();
    contactQuery.append("Insert into rescontact (");
    contactQuery.append("ContactSeq,ResID,LastName,FirstName,ContactLabel,Phone1,Phone2)");
    contactQuery.append("Values( ?,?,?,?,?,?,?)");
    logClient.debug("Insert Query " + contactQuery.toString()); 
    System.out.println(" Contact Insertion Query "+contactQuery.toString());
    try{        
        JdbcTemplate jdbcTemplate = this.getJdbcTemplate();         
        return jdbcTemplate.update(contactQuery.toString(),new Object[] {contactSeq,resId,lastName,firstName,"WEB",Long.parseLong(contactresult),Long.parseLong(alternatecontactresult)});

例外情况：

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回答者：看看S.Jay以前的帖子可能会有所帮助。回答者：看看S.Jay以前的帖子可能会有所帮助。

ERROR [stderr] (http-localhost/127.0.0.1:8080-2)      
org.springframework.dao.DuplicateKeyException: PreparedStatementCallback; SQL [Insert into rescontact (ContactSeq,ResID,LastName,FirstName,ContactLabel,Phone1,Phone2)Values( ?,?,?,?,?,?,?)]; ORA-00001: unique constraint (DOR_RESTINSP.SYS_C0011900) violated
09:31:59,851 ERROR [stderr] (http-localhost/127.0.0.1:8080-2) ; nested exception is java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (DOR_RESTINSP.SYS_C0011900) violated
09:31:59,852 ERROR [stderr] (http-localhost/127.0.0.1:8080-2) 

09:31:59,852 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:239)

09:31:59,852 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)

09:31:59,852 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:660)

09:31:59,852 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:909)

09:31:59,853 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:970)

09:31:59,853 ERROR [stderr] (http-localhost/127.0.0.1:8080-2)
      at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:980)