java: eidt DAL

 https://home.unicode.org/

 

 人生是一種心境,生活是一種藝術,成功是一種心態,幸福是一種感覺,學習是一種成長,競爭是一種建構,情感是一種融合

 

   java.sql.Types 数据类型 java 数据类型 CallableStatement set和 registerOutParameter 数据类型 PreparedStatement set 数据类型 之间转换相对应的数据类型弄清楚

 

 数据类型可以自动判断，优化代码

https://docs.oracle.com/javase/8/docs/api/java/sql/CallableStatement.html
https://docs.oracle.com/javase/8/docs/api/java/sql/PreparedStatement.html

https://docs.oracle.com/en/java/javase/14/docs/api/java.sql/java/sql/PreparedStatement.html
https://docs.oracle.com/en/java/javase/14/docs/api/java.sql/java/sql/CallableStatement.html

https://docs.oracle.com/en/java/javase/14/docs/api/java.sql/java/sql/Types.html

https://docs.oracle.com/en/java/javase/14/docs/api/allclasses-index.html

https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlqr/Data-Types.html

 

 

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/*  * 版权所有 2021 涂聚文有限公司  * 许可信息查看：  * 描述：DAL数据访问层  数据业务层，连接MySQL  *  * 历史版本：  JDK 14.02  * 数据库：My SQL 8.0  * IDE: IntelliJ IDEA 2021.2.3  * OS: Windows 10 x64  * 2021-12-22 创建者 geovindu  * 2021-12-25 添加 Lambda  * 2021-12-27 修改：date  * 接口类  * 2021-12-25 修改者：Geovin Du  * 生成API帮助文档的指令：  *javadoc - -encoding Utf-8 -d apidoc GeovinDuDAL.java  * 配置文件：  * driver=com.mysql.jdbc.Driver  com.mysql.cj.jdbc.Driver  *url=jdbc\:mysql\://localhost\:3306/数据库名称  *user=root  *password=root  *  * */   //#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end     package Geovin.DAL;   import java.awt.print.Book; import java.io.IOException; import java.io.InputStream; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Properties; import java.sql.*; import java.lang.reflect.Parameter; import Geovin.Model.*; import Geovin.UtilitieDB.*;     /**  * 数据业务层操作  * @author geovindu 涂聚文 Geovin Du  * @version 1.0  *  *  * */   public class GeovinDuDAL {       DuMySqlHelper duMySqlHelper=new DuMySqlHelper();       /**      *SQL 语句添加      * @param bookKind      * @return bool      * */     public Boolean AddSql(BookKind bookKind)     {         Boolean isok=false;         String sql="INSERT INTO BookKindList(BookKindName,BookKindParent) values(? ,?)";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindName());         duParameter.setDataType("String");         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindParent());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteInsertSql(sql,duParameters);         return isok;       }       /**      *SQL 语句添加      * @param bookKind      * @return bool      * */     public Boolean AddAutoSql(BookKind bookKind)     {         Boolean isok=false;         String sql="INSERT INTO BookKindList(BookKindName,BookKindParent) values(? ,?)";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindName());         duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindParent());         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteAutoInsertSql(sql,duParameters);         return isok;       }     /**      * 存储过程添加      * @param bookKind      * @return bool      * **/     public Boolean AddProc(BookKind bookKind)     {         Boolean isok=false;         String sql="{CALL proc_Insert_BookKindList(? ,?)}";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindName());         duParameter.setDataType("String");         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindParent());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteInsert(sql,duParameters);         return  isok;       }       /**      * 存储过程添加      * @param bookKind      * @return bool      * **/     public Boolean AddAutoProc(BookKind bookKind)     {         Boolean isok=false;         String sql="{CALL proc_Insert_BookKindList(? ,?)}";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindName());           duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindParent());           duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteAutoInsert(sql,duParameters);         return  isok;       }     /**      * 添加有返回值      * @param bookKind 输入参数      * @param outValue 返回参数      * @return  bool 返回添加是否成功      *      * */     public Boolean AddProc(BookKind bookKind,int outValue)     {         Boolean isok=false;         String sql="{CALL proc_Insert_BookKindList(? ,?)}";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindName());         duParameter.setDataType("String");         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindParent());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteInsertOutSingleInt(sql,duParameters,outValue);         return  isok;       }     /**      * 添加有返回值      * @param bookKind 输入参数      * @param outValue 返回参数      * @return  bool 返回添加是否成功      *      * */     public Boolean AddAutoProc(BookKind bookKind,int outValue)     {         Boolean isok=false;         String sql="{CALL proc_Insert_BookKindList(? ,?)}";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindName());           duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindParent());           duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteAutoInsertOutSingleInt(sql,duParameters,outValue);         return  isok;       }     /**      * 修改 sql      * @param bookKind      * @return  int      * */     public  int EditSQL(BookKind bookKind)     {         int isok=0;         String sql="UPDATE BookKindList SET BookKindName=?,BookKindParent=? where BookKindID=?";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindName());         duParameter.setDataType("String");         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindParent());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         duParameter.setParameterValue(bookKind.getBookKindID());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteUpdateSql(sql,duParameters);         return isok;     }       /**      * 修改 sql      * @param bookKind      * @return  int      * */     public  int EditAutoSQL(BookKind bookKind)     {         int isok=0;         String sql="UPDATE BookKindList SET BookKindName=?,BookKindParent=? where BookKindID=?";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindName());         duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindParent());         duParameter=new ParameterObject();         duParameters.add(duParameter);         duParameter.setDuObject(bookKind.getBookKindID());         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteAutoUpdateSql(sql,duParameters);         return isok;     }     /**      *修改 存储过程      * @param bookKind      * @return  int      * */     public  int EditProc(BookKind bookKind)     {         int isok=0;         String sql="CALL proc_Update_BookKindList(?,?,?)";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindID());         duParameter.setDataType("Integer"); //类型可以判断，不需要去定义         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindName());         duParameter.setDataType("String");         duParameters.add(duParameter);         duParameter=new DuParameter();         duParameter.setParameterValue(bookKind.getBookKindParent());         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteUpdate(sql,duParameters);         return isok;     }         /**      *修改 存储过程      * @param bookKind      * @return  int      * */     public  int EditAutoProc(BookKind bookKind)     {         int isok=0;         String sql="CALL proc_Update_BookKindList(?,?,?)";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindID());           duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindName());           duParameters.add(duParameter);         duParameter=new ParameterObject();         duParameter.setDuObject(bookKind.getBookKindParent());           duParameters.add(duParameter);         isok=duMySqlHelper.ExecuteAutoUpdate(sql,duParameters);         return isok;     }    /**     * 删除 SQL语句     * @param id     * @return  int     *     * */     public  int DelSQL(int id) {         int isok=0;         String sql="Delete From bookkindlist WHERE BookKindID =?";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(id);         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok= duMySqlHelper.ExecuteDeletSql(sql,duParameters);         return isok;     }       /**      * 删除 SQL语句      * @param id      * @return  int      *      * */     public  int DelAutoSQL(int id) {         int isok=0;         String sql="Delete From bookkindlist WHERE BookKindID =?";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(id);         duParameters.add(duParameter);         isok= duMySqlHelper.ExecuteAutoDelteSQL(sql,duParameters);         return isok;     }     /**      * 删除 存储过程语句      * @param id      * @return  int      *      * */     public  int DelProc(int id) {         int isok=0;         String sql="{CALL DeleteBookKind(?)}";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(id);         duParameter.setDataType("Integer");         duParameters.add(duParameter);         isok= duMySqlHelper.ExecuteDelte(sql,duParameters);         return isok;     }       /**      * 删除 存储过程语句      * @param id      * @return  int      *      * */     public  int DelAutoProc(int id) {         int isok=0;         String sql="{CALL DeleteBookKind(?)}";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(id);         duParameters.add(duParameter);         isok= duMySqlHelper.ExecuteAutoDelte(sql,duParameters);         return isok;     }     /**      *SQL语句查询      * @param id      * @return      * */     public BookKind selectSQL(int id)     {         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "SELECT * FROM BookKindList where BookKindID=?";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(id);         duParameter.setDataType("int");         duParameters.add(duParameter);         try {               resultSet = duMySqlHelper.ExecuteQuery(sql, duParameters);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));               }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return bookKind;       }       /**      *SQL语句查询      * @param id      * @return      * */     public BookKind selectAutoSQL(int id)     {         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "SELECT * FROM BookKindList where BookKindID=?";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(id);         duParameters.add(duParameter);         try {               resultSet = duMySqlHelper.ExecuteAutoQuery(sql, duParameters);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));               }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return bookKind;       }     /**      *存储过程语句      * @param id      * @return      * */     public BookKind selectProc(int id)     {         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "{CALL proc_Select_BookKindList(?)}";         ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();         DuParameter duParameter=null;         duParameter=new DuParameter();         duParameter.setParameterValue(id);         duParameter.setDataType("Integer");         duParameters.add(duParameter);         try {               resultSet = duMySqlHelper.ExecuteQuery(sql, duParameters);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));               }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return bookKind;       }       /**      *存储过程语句      * @param id      * @return      * */     public BookKind selectAutoProc(int id)     {         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "{CALL proc_Select_BookKindList(?)}";         ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();         ParameterObject duParameter=null;         duParameter=new ParameterObject();         duParameter.setDuObject(id);         duParameters.add(duParameter);         try {               resultSet = duMySqlHelper.ExecuteAutoQuery(sql, duParameters);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));               }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return bookKind;       }         /**      *SQL语句查询      * @param      * @return      * */     public ArrayList<BookKind> selectAllSQL()     {         ArrayList<BookKind> list=new ArrayList<BookKind>();         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "SELECT * FROM BookKindList";         try {               resultSet = duMySqlHelper.ExecuteQuery(sql, null);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));                 list.add(bookKind);             }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return list;       }     /**      *存储过程语句      * @param      * @return      * */     public ArrayList<BookKind> selectAllProc()     {         ArrayList<BookKind> list=new ArrayList<BookKind>();         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "{CALL proc_Select_BookKindListAll()}";         try {               resultSet = duMySqlHelper.ExecuteQuery(sql, null);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));                 list.add(bookKind);             }         }         catch (Exception exception)         {             exception.printStackTrace();         }         return list;       }         /**      * 分页查询      * @param fields 要查询的字段，用逗号(,)分隔      * @param table 查询的表      * @param where 查询条件      * @param orderby 排序规则      * @param pageindex  查询页码      * @param pageSize 每页记录数      * @param outValues1 两个反回参数  总记录数 总页数      * */     public ArrayList<BookKind> selectPaging(String fields,String table,String where,String orderby,int pageindex,int pageSize,ArrayList<OutObject> outValues1)     {         ArrayList<BookKind> list=new ArrayList<BookKind>();        // outValues1=new ArrayList<OutObject>();         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "{CALL sp_viewPage(?,?,?,?,?,?,?,?)}";         try {               ArrayList<DuParameter> duParameters=new ArrayList<DuParameter>();             DuParameter duParameter=null;               duParameter=new DuParameter();             duParameter.setParameterValue(fields);             duParameter.setDataType("String");             duParameters.add(duParameter);               duParameter=new DuParameter();             duParameter.setParameterValue(table);             duParameter.setDataType("String");             duParameters.add(duParameter);               duParameter=new DuParameter();             duParameter.setParameterValue(where);             duParameter.setDataType("String");             duParameters.add(duParameter);               duParameter=new DuParameter();             duParameter.setParameterValue(orderby);             duParameter.setDataType("String");             duParameters.add(duParameter);             duParameter=new DuParameter();             duParameter.setParameterValue(pageindex);             duParameter.setDataType("Integer");             duParameters.add(duParameter);             duParameter=new DuParameter();             duParameter.setParameterValue(pageSize);             duParameter.setDataType("Integer");             duParameters.add(duParameter);                 ArrayList<DuParameter> outParameters=new ArrayList<DuParameter>();             duParameter=new DuParameter();             duParameter.setParameterValue("totalcount");             duParameter.setDataType("Integer");             outParameters.add(duParameter);             duParameter=new DuParameter();             duParameter.setParameterValue("pagecount");             duParameter.setDataType("Integer");             outParameters.add(duParameter);             ArrayList<OutObject> outValues2=new ArrayList<OutObject>();             resultSet = duMySqlHelper.ExecuteQuery(sql, duParameters,outParameters,outValues1);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));                 list.add(bookKind);             }           }         catch (Exception exception)         {             exception.printStackTrace();         }         return list;       }     /**      * 分页查询  geovindu Geovin Du 涂聚文      * @param fields 要查询的字段，用逗号(,)分隔      * @param table 查询的表      * @param where 查询条件      * @param orderby 排序规则      * @param pageindex  查询页码      * @param pageSize 每页记录数      * @param outValues1 两个反回参数  总记录数 总页数      * */     public ArrayList<BookKind> selectAutoPaging(String fields,String table,String where,String orderby,int pageindex,int pageSize,ArrayList<OutObject> outValues1)     {         ArrayList<BookKind> list=new ArrayList<BookKind>();         // outValues1=new ArrayList<OutObject>();         ResultSet resultSet=null;         BookKind bookKind=null;         String sql = "{CALL sp_viewPage(?,?,?,?,?,?,?,?)}";         try {               ArrayList<ParameterObject> duParameters=new ArrayList<ParameterObject>();             ParameterObject duParameter=null;               duParameter=new ParameterObject();             duParameter.setDuObject(fields);             duParameters.add(duParameter);               duParameter=new ParameterObject();             duParameter.setDuObject(table);             duParameters.add(duParameter);               duParameter=new ParameterObject();             duParameter.setDuObject(where);             duParameters.add(duParameter);             duParameter=new ParameterObject();             duParameter.setDuObject(orderby);             duParameters.add(duParameter);             duParameter=new ParameterObject();             duParameter.setDuObject(pageindex);             duParameters.add(duParameter);             duParameter=new ParameterObject();             duParameter.setDuObject(pageSize);             duParameters.add(duParameter);                 ArrayList<ParameterObject> outParameters=new ArrayList<ParameterObject>();             duParameter=new ParameterObject();             duParameter.setDuObject("Integer");             outParameters.add(duParameter);             duParameter=new ParameterObject();             duParameter.setDuObject("Integer");             outParameters.add(duParameter);             ArrayList<OutObject> outValues2=new ArrayList<OutObject>();             resultSet = duMySqlHelper.ExecuteAutoQuery(sql, duParameters,outParameters,outValues1);             while (resultSet.next()) {                 bookKind =new BookKind();                 bookKind.setBookKindID(resultSet.getInt("BookKindID"));                 bookKind.setBookKindName(resultSet.getString("BookKindName"));                 bookKind.setBookKindParent(resultSet.getInt("BookKindParent"));                 list.add(bookKind);             }           }         catch (Exception exception)         {             exception.printStackTrace();         }         return list;       }   }