開發(fā)SpringBoot過程中程序發(fā)生異常，提示“Cannot determine value type from string 'xxx' with root cause”錯誤，根據(jù)Log顯示數(shù)據(jù)格式錯誤，試了修改數(shù)據(jù)格式，沒用，在此記錄解決辦法。

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: Error attempting to get column 'name' from result set.  Cause: java.sql.SQLDataException: Cannot determine value type from string 'xiaoming'
; Cannot determine value type from string 'xiaoming'; nested exception is java.sql.SQLDataException: Cannot determine value type from string 'xiaoming'] with root cause

com.mysql.cj.exceptions.DataConversionException: Cannot determine value type from string 'xiaoming'

解決辦法：這種情況出現(xiàn)還可能是實體類實現(xiàn)有參構(gòu)造函數(shù)后，沒有寫無參構(gòu)造函數(shù)，添加無參構(gòu)造函數(shù)即可。

//無參構(gòu)造函數(shù)
public UserBean() {
        
}

public UserBean(String name, int age) {
    this.name = name;
    this.age = age;
}