好多段代码
许多段代码
1、项目地址与类的包名路径
String pro = System.getProperty("user.dir");
String pkg = CgSpringMvcIbatis.class.getPackage().getName().replaceAll("\\.","\\\\");
2、根据模板生成文件（用时需修改）
Template tJsp = cfg.getTemplate("js.ftl");// 模板名称
tJsp.setEncoding("UTF-8");
String jspDir = jMap.get("conpath").toString();
File fileDir = new File(jspDir);
org.apache.commons.io.FileUtils.forceMkdir(fileDir);
File output_service = new File(jspDir + "/default.js");
Writer writer_service = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(output_service), "UTF-8"));
tJsp.process(jMap, writer_service);
writer_service.close();
3、泛型接口Ibatis
/**
* Ibatis Dao 接口
* 通用增删改查\带分页\单条
* @author mywhile
* @param <T>
*/
public abstract interface IbatisDao<T> {
public void delete(String guid, String sqlMapId);
public void save(T bean, String sqlMapId);
public void update(T bean, String sqlMapId);
public List<T> query(String sqlMapId);
public T queryRowByGuid(String guid, String sqlMapId);
public List<T> queryPageData(String sqlMapId, Map map, int pageNo, int pageSize);
public int queryCountRow(Map map, String SqlMapId);
}
4、泛型接口实现Ibatis
import java.util.List;
import java.util.Map;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import sdcncsi.ibatis.test.dao.IbatisDao;
@SuppressWarnings("unchecked")
public class IbatisServicesImpl<T>
extends SqlMapClientDaoSupport implements IbatisDao<T> {
@Override
public void delete(String guid, String sqlMapId) {
getSqlMapClientTemplate().delete(sqlMapId, guid);
}
@Override
public List<T> query(String sqlMapId) {
return getSqlMapClientTemplate().queryForList(sqlMapId);
}
@Override
public T queryRowByGuid(String guid, String sqlMapId) {
return (T) getSqlMapClientTemplate().queryForObject(sqlMapId, guid);
}
@Override
public void save(T bean, String sqlMapId) {
getSqlMapClientTemplate().insert(sqlMapId, bean);
}
@Override
public void update(T bean, String sqlMapId) {
getSqlMapClientTemplate().update(sqlMapId, bean);
}
@Override
public List<T> queryPageData(String sqlMapId, Map map, int pageNo, int pageSize) {
map.put("pageNo", pageNo == 1 ? 0 : pageSize);
map.put("pageSize", pageSize);
return getSqlMapClientTemplate().queryForList(sqlMapId, map);//, pageNo, pageSize
}
@Override
public int queryCountRow(Map map, String sqlMapId) {
return (Integer) getSqlMapClientTemplate().queryForObject(sqlMapId, map);
}
}
5、Ibatis中取SQL
String sql = null; SqlMapClientImpl sqlmap = (SqlMapClientImpl)this.getSqlMapClient(); MappedStatement stmt = sqlmap.getMappedStatement(sqlMapId); Sql stmtSql = stmt.getSql(); SessionScope session = new SessionScope(); StatementScope scope = new StatementScope(session); scope.setStatement(stmt); sql = stmtSql.getSql(scope, map);
6、附件＝Spring+Ibatis代码生成器；
7、文件读取
/**
* 以字节为单位读取文件，常用于读二进制文件，如图片、声音、影像等文件。
* @param fileName 文件的名
*/
public static void readFileByBytes(String fileName) {
File file = new File(fileName);
InputStream in = null;
try {
System.out.println("以字节为单位读取文件内容，一次读一个字节：");
// 一次读一个字节
in = new FileInputStream(file);
int tempbyte;
while ((tempbyte = in.read()) != -1) {
System.out.write(tempbyte);
}
in.close();
} catch (IOException e) {
e.printStackTrace();
return;
}
try {
System.out.println("以字节为单位读取文件内容，一次读多个字节：");
// 一次读多个字节
byte[] tempbytes = new byte[100];
int byteread = 0;
in = new FileInputStream(fileName);
FileReadWrite.showAvailableBytes(in);
// 读入多个字节到字节数组中，byteread为一次读入的字节数
while ((byteread = in.read(tempbytes)) != -1) {
System.out.write(tempbytes, 0, byteread);
}
} catch (Exception e1) {
e1.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e1) {
}
}
}
}
/**
* 以字符为单位读取文件，常用于读文本，数字等类型的文件
* @param fileName 文件名
*/
public static void readFileByChars(String fileName) {
File file = new File(fileName);
Reader reader = null;
try {
System.out.println("以字符为单位读取文件内容，一次读一个字节：");
// 一次读一个字符
reader = new InputStreamReader(new FileInputStream(file));
int tempchar;
while ((tempchar = reader.read()) != -1) {
// 对于windows下，rn这两个字符在一起时，表示一个换行。
// 但如果这两个字符分开显示时，会换两次行。
// 因此，屏蔽掉r，或者屏蔽n。否则，将会多出很多空行。
if (((char) tempchar) != 'r') {
System.out.print((char) tempchar);
}
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
System.out.println("以字符为单位读取文件内容，一次读多个字节：");
// 一次读多个字符
char[] tempchars = new char[30];
int charread = 0;
reader = new InputStreamReader(new FileInputStream(fileName));
// 读入多个字符到字符数组中，charread为一次读取字符数
while ((charread = reader.read(tempchars)) != -1) {
// 同样屏蔽掉r不显示
if ((charread == tempchars.length)
&& (tempchars[tempchars.length - 1] != 'r')) {
System.out.print(tempchars);
} else {
for (int i = 0; i < charread; i++) {
if (tempchars[i] == 'r') {
continue;
} else {
System.out.print(tempchars[i]);
}
}
}
}
} catch (Exception e1) {
e1.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
}
}
}
}
/**
* 以行为单位读取文件，常用于读面向行的格式化文件
* @param fileName 文件名
*/
public static void readFileByLines(String fileName) {
File file = new File(fileName);
BufferedReader reader = null;
try {
System.out.println("以行为单位读取文件内容，一次读一整行：");
reader = new BufferedReader(new FileReader(file));
String tempString = null;
int line = 1;
// 一次读入一行，直到读入null为文件结束
while ((tempString = reader.readLine()) != null) {
// 显示行号
System.out.println("line " + line + ": " + tempString);
line++;
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
}
}
}
}
/**
* 随机读取文件内容
* @param fileName 文件名
*/
public static void readFileByRandomAccess(String fileName) {
RandomAccessFile randomFile = null;
try {
System.out.println("随机读取一段文件内容：");
// 打开一个随机访问文件流，按只读方式
randomFile = new RandomAccessFile(fileName, "r");
// 文件长度，字节数
long fileLength = randomFile.length();
// 读文件的起始位置
int beginIndex = (fileLength > 4) ? 4 : 0;
// 将读文件的开始位置移到beginIndex位置。
randomFile.seek(beginIndex);
byte[] bytes = new byte[10];
int byteread = 0;
// 一次读10个字节，如果文件内容不足10个字节，则读剩下的字节。
// 将一次读取的字节数赋给byteread
while ((byteread = randomFile.read(bytes)) != -1) {
System.out.write(bytes, 0, byteread);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (randomFile != null) {
try {
randomFile.close();
} catch (IOException e1) {
}
}
}
}
/**
* 显示输入流中还剩的字节数
* @param in
*/
private static void showAvailableBytes(InputStream in) {
try {
System.out.println("当前字节输入流中的字节数为:" + in.available());
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 将内容追加到文件尾部
* A方法追加文件：使用RandomAccessFile
* @param fileName 文件名
* @param content 追加的内容
*/
public static void appendMethodA(String fileName, String content) {
try {
// 打开一个随机访问文件流，按读写方式
RandomAccessFile randomFile = new RandomAccessFile(fileName, "rw");
// 文件长度，字节数
long fileLength = randomFile.length();
// 将写文件指针移到文件尾。
randomFile.seek(fileLength);
randomFile.writeBytes(content);
randomFile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 将内容追加到文件尾部
* B方法追加文件：使用FileWriter
* @param fileName
* @param content
*/
public static void appendMethodB(String fileName, String content) {
try {
// 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件
FileWriter writer = new FileWriter(fileName, true);
writer.write(content);
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
8、Myeclipse生成序列号
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class MyEclipseGEN {
private static final String LL = "Decompiling this copyrighted software is a violation of both your license agreement and the Digital Millenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf). Under section 1204 of the DMCA, penalties range up to a $500,000 fine or up to five years imprisonment for a first offense. Think about it; pay for a license, avoid prosecution, and feel better about yourself.";
public String getSerial(String userId, String licenseNum) {
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.add(1, 3);
cal.add(6, -1);
java.text.NumberFormat nf = new java.text.DecimalFormat("000");
licenseNum = nf.format(Integer.valueOf(licenseNum));
String verTime = new StringBuilder("-").append(new java.text.SimpleDateFormat("yyMMdd").format(cal.getTime())).append("0").toString();
String type = "YE3MP-";
String need = new StringBuilder(userId.substring(0, 1)).append(type).append("300").append(licenseNum).append(verTime).toString();
String dx = new StringBuilder(need).append(LL).append(userId).toString();
int suf = this.decode(dx);
String code = new StringBuilder(need).append(String.valueOf(suf)).toString();
return this.change(code);
}
private int decode(String s) {
int i;
char[] ac;
int j;
int k;
i = 0;
ac = s.toCharArray();
j = 0;
k = ac.length;
while (j < k) {
i = (31 * i) + ac[j];
j++;
}
return Math.abs(i);
}
private String change(String s) {
byte[] abyte0;
char[] ac;
int i;
int k;
int j;
abyte0 = s.getBytes();
ac = new char[s.length()];
i = 0;
k = abyte0.length;
while (i < k) {
j = abyte0[i];
if ((j >= 48) && (j <= 57)) {
j = (((j - 48) + 5) % 10) + 48;
} else if ((j >= 65) && (j <= 90)) {
j = (((j - 65) + 13) % 26) + 65;
} else if ((j >= 97) && (j <= 122)) {
j = (((j - 97) + 13) % 26) + 97;
}
ac[i] = (char) j;
i++;
}
return String.valueOf(ac);
}
public MyEclipseGEN() {
super();
}
public static void main(String[] args) {
try {
System.out.println("please input register name:");
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String userId = null;
userId = reader.readLine();
MyEclipseGEN myeclipsegen = new MyEclipseGEN();
String res = myeclipsegen.getSerial(userId, "20");
System.out.println("Serial:" + res);
reader.readLine();
} catch (IOException ex) {
}
}
}
9、Myeclipse7.1插件添加
public class Plugin {
private String path;
public Plugin(String path) {
this.path = path;
}
public void print() {
List list = getFileList(path);
if (list == null) {
return;
}
int length = list.size();
for (int i = 0; i < length; i++) {
String result = "";
String thePath = getFormatPath(getString(list.get(i)));
File file = new File(thePath);
if (file.isDirectory()) {
String fileName = file.getName();
if (fileName.indexOf("_") < 0) {
continue;
}
String[] filenames = fileName.split("_");
String filename1 = filenames[0];
String filename2 = filenames[1];
result = filename1 + "," + filename2 + ",file:/" + path + "\\"
+ fileName + "\\,4,false";
System.out.println(result);
} else if (file.isFile()) {
String fileName = file.getName();
if (fileName.indexOf("_") < 0) {
continue;
}
String[] filenames = fileName.split("_");
String filename1 = filenames[0];
String filename2 = filenames[1].substring(0, filenames[1]
.lastIndexOf("."));
result = filename1 + "," + filename2 + ",file:/" + path + "\\"
+ fileName + ",4,false";
System.out.println(result);
}
}
}
public List getFileList(String path) {
path = getFormatPath(path);
path = path + "/";
File filePath = new File(path);
if (!filePath.isDirectory()) {
return null;
}
String[] filelist = filePath.list();
List filelistFilter = new ArrayList();
for (int i = 0; i < filelist.length; i++) {
String tempfilename = getFormatPath(path + filelist[i]);
filelistFilter.add(tempfilename);
}
return filelistFilter;
}
public String getString(Object object) {
if (object == null) {
return "";
}
return String.valueOf(object);
}
public String getFormatPath(String path) {
path = path.replaceAll("\\\\", "/");
path = path.replaceAll("//", "/");
return path;
}
public static void main(String[] args) {
new Plugin("D:\\Program Files\\MyEclipse 7.1\\plugins").print();
}
}