**
数据库插入(insert)sql封装
**
1. 封装工具类
public class DBUtil {
public String column; //插入列名
public String values; //插入值
public String condition;
public static DBUtil insert(String seqName, Object obj){
......}
}
2. insert具体实现
public static DBUtil insert(String seqName, Object obj){
//seqName 表对应ID索引
Field[] fields = obj.getClass().getDeclaredFields(); //类列值
//父类
Field[] parentFields = obj.getClass().getSuperclass().getDeclaredFields();
String columnString = BaseEntity.FIELD_CREATE_DATE + "," ;
String valuesString = "SYSDATE,";
for(int i = 0, j=parentFields.length; i <j; i++){
String fieldName = parentFields[i].getName();
Object fieldValue = DBUtil.getFieldValueByName(parentFields[i].getName(), obj);
if(!ValidatorUtil.isObjectEmpty(fieldValue)){
if(fieldName.equals(BaseEntity.FIELD_REMARK)){
columnString = columnString + BaseEntity.FIELD_REMARK + ",";
valuesString = valuesString + "'" + fieldValue + "',";
}
if(fieldName.equals(BaseEntity.FIELD_CREATE_USER_ID)){
columnString = columnString + BaseEntity.FIELD_CREATE_USER_ID + ",";
valuesString = valuesString + fieldValue + ",";
}
if(fieldName.equals(BaseEntity.FIELD_CREATE_USER)){
columnString = columnString + BaseEntity.FIELD_CREATE_USER + ",";
valuesString = valuesString + "'" + fieldValue + "',";
}
if(fieldName.equals(BaseEntity.FIELD_STATUS)){
columnString = columnString + BaseEntity.FIELD_STATUS + ",";
valuesString = valuesString + fieldValue + ",";
}
if(fieldName.equals(BaseEntity.FIELD_DWDM)){
columnString = columnString + BaseEntity.FIELD_DWDM + ",";
valuesString = valuesString + "'" + fieldValue + "',";
}
if (fieldName.equals(BaseEntity.FIELD_UPDATE_USER)) {
columnString = columnString + BaseEntity.FIELD_UPDATE_USER + ",";
valuesString = valuesString + "'" + fieldValue + "',";
}
if (fieldName.equals(BaseEntity.FIELD_UPDATE_USER_ID)) {
columnString = columnString + BaseEntity.FIELD_UPDATE_USER_ID + ",";
valuesString = valuesString + "'" + fieldValue + "',";
}
}
}
for (int i = 0, j=fields.length; i < j; i++) {
String fieldType = fields[i].getType().toString();
String fieldName = fields[i].getName();
Object fieldValue = DBUtil.getFieldValueByName(fields[i].getName(), obj);
if (fieldType.equals("class java.lang.Long") && fieldName.equals("ID")) {
if(!ValidatorUtil.isObjectEmpty(fieldValue)){
columnString = columnString + fieldName + ",";
valuesString = valuesString + fieldValue + ",";
}else{
columnString = columnString + fieldName + ",";
valuesString = valuesString + seqName + ".nextval,";
}
}
// 如果值不为null
if (!ValidatorUtil.isObjectEmpty(fieldValue)) {
if (fieldType.equals("class java.lang.String")) {
columnString = columnString + fieldName + ",";
valuesString = valuesString + "'" + fieldValue + "',";
} else if (fieldType.equals("class java.util.Date")) {
columnString = columnString + fieldName + ",";
String dateString = DateUtil.defaultStringToString(fieldValue.toString(), "yyyy-MM-dd HH:mm:ss");
valuesString = valuesString + " to_date('" + dateString + "', 'yyyy/mm/dd hh24:mi:ss'),";
}else if (!fieldName.equals("ID")) {
columnString = columnString + fieldName + ",";
valuesString = valuesString + fieldValue + ",";
}
}
}
DBUtil db = new DBUtil();
if(!ValidatorUtil.isEmpty(columnString) && !ValidatorUtil.isEmpty(valuesString)){
db.setColumn(columnString.substring(0, columnString.lastIndexOf(",")));
db.setValues(valuesString.substring(0, valuesString.lastIndexOf(",")));
}
System.out.println(db.getColumn());
System.out.println(db.getValues());
return db;
}
3. insert具体实现
this.bankAccountDao.insertBankAccount(DBUtil.insert(entity.SEQ_NAME, entity));