Validation spring mvc中对象的验证错误

这是我在此financialTransactionType中的验证程序代码，作为对象的financialTransactionType在模型中

@Override
public void validate(Object target, Errors errors) {

    Date today = new Date();
    MiniStatementViewModel miniStatementViewModel=(MiniStatementViewModel) target;


    else if(miniStatementViewModel.getFinancialTransactionType()==null)
    {
    errors.rejectValue("financialTransactionType","financialTransactionTypeNull");
    }

所以，当我在JSP上显示错误消息时，会给出一个错误消息，如

public class MiniStatementViewModel {


private boolean isMiniStatement;

private Date fromDate;

private Date toDate;

private String accountCode;

private FinancialTransactionType financialTransactionType;

---

该错误意味着您正在从表单中获取字符串值

NONE

，为了使该值适合

financialTransactionType

字段，它执行financialTransactionType.valueOf（“NONE”），并返回一个错误，因为它不存在

将您的班级改为：

Failed to convert property value of type java.lang.String to required type mkcl.os.apps.solar.account.model.FinancialTransactionType for property financialTransactionType; 
nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type java.lang.String to type mkcl.os.apps.solar.account.model.FinancialTransactionType for value NONE; 
nested exception is java.lang.IllegalArgumentException: No enum const class mkcl.os.apps.solar.account.model.FinancialTransactionType.NONE

和您的验证器：

public class MiniStatementViewModel {


private boolean isMiniStatement;

private Date fromDate;

private Date toDate;

private String accountCode;

private String financialTransactionType;

@Override
public void validate(Object target, Errors errors) {

    Date today = new Date();
    MiniStatementViewModel miniStatementViewModel=(MiniStatementViewModel) target;


    else if(FinancialTransactionType.valueOf(miniStatementViewModel.getFinancialTransactionType())==null)
    {
    errors.rejectValue("financialTransactionType","financialTransactionTypeNull");
    }