SimpleJdbcInsert 在 MySQL 中混合来自不同数据库的列名

Question

我最近将 spring 框架从 5.0.3 升级到 5.3.12，mysql 从 5.7 升级到 8。

我正在数据库中添加新列并在模型中添加相应字段 class。但它无法在数据库中存储新添加字段的值。我已经调试了程序，值在模型 class 中进行了修补，但是在调用 simplejdbcinsert api 之后，值不会在数据库中持续存在。

代码是这样的-

DAO 调用 -

      logger.debug("Party Insert: " + logStr);
      ID = new SimpleJdbcInsert(dataSource).withTableName("TBL_PARTY")
      .usingGeneratedKeyColumns("Id").executeAndReturnKey(sqlParams).intValue();

型号class-

public class Party extends GenericEntity{


private String partyType, name, partyCode, PANNumber;
    private String registrationId;
private String WebsiteAddress;
private boolean isActive = true;    
private String externalID;
private double openingBalance, closingBalance;

// new columns - fields
private String temp;
private int tempInt;
private byte tempTyniInt;
private boolean tempBol;


public String getTemp() {
    return temp;
}

public void setTemp(String temp) {
    this.temp = temp;
}

public String getWebsiteAddress() {
    return WebsiteAddress;
}
public void setWebsiteAddress(String websiteAddress) {
    WebsiteAddress = websiteAddress;
}
public String getPartyCode() {
    return partyCode;
}
public void setPartyCode(String partyCode) {
    this.partyCode = partyCode;
}
public String getPartyType() {
    return partyType;
}
public void setPartyType(String partyType) {
    this.partyType = partyType;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}

public String getRegistrationId() {
    return registrationId;
}
public void setRegistrationId(String registrationId) {
    this.registrationId = registrationId;
}
public boolean equals(Object obj) {
    
    return ReflectionUtil.compareObjects(this, obj);
}

public String getExternalID() {
    return externalID;
}
public void setExternalID(String externalID) {
    this.externalID = externalID;
}
public double getOpeningBalance() {
    return openingBalance;
}
public void setOpeningBalance(double openingBalance) {
    this.openingBalance = openingBalance;
}
public double getClosingBalance() {
    return closingBalance;
}
public void setClosingBalance(double closingBalance) {
    this.closingBalance = closingBalance;
}
public String toString()
{
    return StringUtil.objectToString(this).concat(super.toString());
}
public String getPANNumber() {
    return PANNumber;
}
public void setPANNumber(String pANNumber) {
    PANNumber = pANNumber;
}
public boolean getIsActive() {
    return isActive;
}
public void setIsActive(boolean isActive) {
    this.isActive = isActive;
}

public int getTempInt() {
    return tempInt;
}

public void setTempInt(int tempInt) {
    this.tempInt = tempInt;
}

public int getTempTyniInt() {
    return tempTyniInt;
}

public void setTempTyniInt(byte tempTyniInt) {
    this.tempTyniInt = tempTyniInt;
}

public boolean getTempBol() {
    return tempBol;
}

public void setTempBol(boolean tempBol) {
    this.tempBol = tempBol;
}

新列（字段）是 - temp、tempInt、tempTyniInt、tempBol。

仅供参考 - 升级后，我们已将所有表的数据库排序规则从 latin1_swedish_ci 更改为 utf8mb4_unicode_ci，字符集从 latin1 更改为 utf8mb4

Answer 1

从源头找到了解决方案- https://github.com/spring-projects/spring-framework/issues/22015

有人评论了 -

属性 nullCatalogMeansCurrent 的默认值已在 mysql-driver 5.x 和 8.x 中更改。在5.x中默认值为true，在8.x中默认值为false，所以在5.x中DatabaseMetaData.getTables会return完全来自 'example1' 和 8.x DatabaseMetaData.getTables 的表格将 return 表格不仅来自 'example1'，而且来自所有数据库，这就是 SQL 将更改为 'INSERT INTO persons (lastname) VALUES (?)' 的原因。解决方法，在使用 mysql-driver 8.x 时将 nullCatalogMeansCurrent=true 添加到 conn url，所有测试都成功通过。

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