标签：
//第一次学习Jfinal框架,挺方便的,就是这个ActiveRecordPlugin有点头疼,
//是不是失去了将数据库对象化的操作了,怪自己懒,写一个算是数据库映射吧..(大虾莫笑)
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
packagecom.npc.core.jfinal.create;
importjava.io.File;
importjava.io.FileWriter;
importjava.io.IOException;
importjava.sql.SQLException;
importjava.util.HashMap;
importjava.util.List;
importjava.util.Map;
importcom.npc.model.MyModel;
importfreemarker.template.Configuration;
importfreemarker.template.Template;
importfreemarker.template.TemplateException;
/**
* 根据数据库的表跟列生成jfinal需要的entity格式
*
* @ClassName: Create
* @Description: TODO
*
@author : 陈文希
* @date:2013-3-3 下午8:28:02
*/
publicclassCreate {
publicstaticvoidmain(String[] args)throwsSQLException, IOException,
TemplateException {
Configuration config =newConfiguration();
config.setClassForTemplateLoading(Create.class,"/ftl");
Template temp = config.getTemplate("entity.ftl");
Map<String,MyModel> map =newHashMap<String,MyModel>();
MyModel myModel =newMyModel();
myModel.setPackageName(DBConn.p.getProperty("package"));
List<String> tables = DBConn.getTableNamesByDBName();// 获取该数据库的所有表名称
for(String table : tables) {
myModel.setTableName(table);// 生成当前的Entity类
myModel.setColumnsNames(DBConn.getColumnsNamesByTableName(table));// 根据表名称获取所有的列名称
map.put("myModel", myModel);
File createFolder =newFile(System.getProperty("user.dir")+"/src/"+DBConn.p.getProperty("package").replace(".","/"));
createFolder.mkdirs(); //预先创建文件夹,预防没有文件夹而找不到路径
temp.process(map,newFileWriter(createFolder+"/"+newCreate().toLowerCaseTheFristChar(table)+".java"));
}
System.out.println("生成Entity成功!.请查看");
}
privateString toLowerCaseTheFristChar(String str){
byte[] items = str.getBytes();
items[0] = (byte)((char)items[0]-‘a‘+‘A‘);
returnnewString(items);
}
}
|
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
packagecom.npc.core.jfinal.create;
importjava.io.IOException;
importjava.sql.Connection;
importjava.sql.DriverManager;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjava.util.ArrayList;
importjava.util.List;
importjava.util.Properties;
importcom.mysql.jdbc.Statement;
publicclassDBConn {
publicstaticfinalProperties p =newProperties();
static{
try{
p.load(DBConn.class.getResourceAsStream("/createEntity.properties"));
Class.forName(p.getProperty("className"));
}catch(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch(IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
publicstaticConnection getConnection()throwsIOException, SQLException {
returnDriverManager.getConnection(p.getProperty("driverName"),
p.getProperty("userName"), p.getProperty("userPassword"));
}
/**
* 获取数据库的所有表名称
*
* @Title: getTableNamesByDBName
* @Description: TODO
* @param @return
* @param @throws SQLException
* @param @throws IOException
* @author: 陈文希
* @return List<String>
* @throws
*/
publicstaticList<String> getTableNamesByDBName()throwsSQLException,
IOException {
Statement stame = (Statement) DBConn.getConnection().createStatement();
ResultSet rs = stame.executeQuery("show tables;");
List<String> list =newArrayList<String>();
while(rs.next()) {
list.add(rs.getString(1));
}
returnlist;
}
/**
* 根据表名称获取表的所有字段名称
* @Title: getColumnsNamesByTableName
* @Description: TODO
* @param @param tName
* @param @return
* @param @throws SQLException
* @param @throws IOException
* @author: 陈文希
* @return List<String>
* @throws
*/
publicstaticList<String> getColumnsNamesByTableName(String tName)throwsSQLException, IOException{
List<String> list =newArrayList<String>();
Statement stame = (Statement) DBConn.getConnection().createStatement();
ResultSet rs = stame.executeQuery("desc "+tName+";");
while(rs.next()) {
list.add(rs.getString(1));
}
returnlist;
}
}
|
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
packagecom.npc.model;
importjava.util.List;
/**
* Model 实体类的数据承载
* @ClassName: MyModel
* @Description: TODO
* @author: 陈文希
* @date:2013-3-3 下午11:54:27
*/
publicclassMyModel {
privateString packageName;
privateString tableName;
privateList<String> columnsNames;
publicString getPackageName() {
returnpackageName;
}
publicvoidsetPackageName(String packageName) {
this.packageName = packageName;
}
publicString getTableName() {
returntableName;
}
publicvoidsetTableName(String tableName) {
this.tableName = tableName;
}
publicList<String> getColumnsNames() {
returncolumnsNames;
}
publicvoidsetColumnsNames(List<String> columnsNames) {
this.columnsNames = columnsNames;
}
}
|
|
1
2
3
4
5
6
7
8
9
10
|
package${myModel.packageName};
importcom.jfinal.plugin.activerecord.Model;
publicclass${myModel.tableName?cap_first}extendsModel<${myModel.tableName?cap_first}>{
publicstaticfinal${myModel.tableName?cap_first} dao =new${myModel.tableName?cap_first}();
<#list myModel.columnsNames as column>
publicstaticfinalString ${column?upper_case} ="${column}";
</#list>
}
|
标签：
原文地址：http://my.oschina.net/baochanghong/blog/414569
