spring boot项目报错:Cannot determine value type from string ‘xxxxx’

spring boot项目报错:Cannot determine value type from string 'xxxxxx’

完整报错信如下:

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 '张三'; 
 Cannot determine value type from string '张三'; 
nested exception is java.sql.SQLDataException:
 Cannot determine value type from string '张三'] with root cause

原因分析:
经测试:
当如下情况:实体类创建了一个参数不完整 的构造方法(具有完整参数 的构造方法不会报错!),而没有为此创建一个无参的构造方法时,就会报次错误。

@Data
public class User {
    private int id;
    private String name;
    private int age;
    
    public User( String name, int age) {
        this.name = name;
        this.age = age;
    }
}

解决问题:
再添加一个无参的构造方法,问题解决。代码修改为:

@Data
public class User {
    private int id;
    private String name;
    private int age;

    //Cannot determine value type from string '张三'] with root cause


    public User() {
    }

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

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