标签：utils and 文件夹 content 简单的 nfa Servle load() eal
简单的整合一下struts2+mybatis，此文主要写给自己看
public class SessionUtil {
//获得session工厂
private static SqlSessionFactory factory = null;
//定义一个ThreadLocal存放session
private static ThreadLocal<SqlSession> threadLocal = new ThreadLocal<>();
static{
try {
//根据配置文件创建工厂
InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
factory = new SqlSessionFactoryBuilder().build(inputStream);
} catch (Exception e) {
e.printStackTrace();
}
}
//编写方法，获取session，通过判断，一定得到线程中的session
public static SqlSession getSession() {
//1.从当前线程中获取session
SqlSession session = threadLocal.get();
if (session==null) {
session = factory.openSession();
threadLocal.set(session);//绑定到当前线程上
}
//2.返回session
return session;
}
//从当前线程移除session
public static void close() {
SqlSession session = threadLocal.get();
if (session!=null) {
threadLocal.remove();
session.close();
}
}
}
配置struts中的拦截器，其作用类似于servlet的过滤器，
<!-- 配置拦截器 --> <interceptors> <!-- 1.配置自己的拦截器 --> <interceptor name="timeInterceptor" class="com.woniuxy.interceptor.CustomInterceptor"></interceptor> <!-- 2.配置自己的拦截器栈 --> <interceptor-stack name="myStack"> <!-- 2.1引用struts的默认拦截器栈 --> <interceptor-ref name="defaultStack"></interceptor-ref> <!-- 2.2引用自己的拦截器 --> <interceptor-ref name="timeInterceptor"></interceptor-ref> </interceptor-stack> </interceptors>
上传文件
<form action="file_upload" enctype="multipart/form-data" method="post"> <input type="file" name="abc"><br> <input type="submit" value="上传"> </form>
public class FileUploadAction {
private File abc; //保存文件
private String abcContentType; //文件类型
private String abcFileName; //文件名
private Account account;
private AccountDao accountService = new AccountService();
public File getAbc() {
return abc;
}
public void setAbc(File abc) {
this.abc = abc;
}
public String getAbcContentType() {
return abcContentType;
}
public void setAbcContentType(String abcContentType) {
this.abcContentType = abcContentType;
}
public String getAbcFileName() {
return abcFileName;
}
public void setAbcFileName(String abcFileName) {
this.abcFileName = abcFileName;
}
public Account getAccount() {
return account;
}
public void setAccount(Account account) {
this.account = account;
}
//处理请求的方法
public String upload() {
System.out.println(abc);
System.out.println(abcContentType);
System.out.println(abcFileName);
//1.将文件存放到服务器指定的文件夹
//1.1.获取文件夹的路径
String path = ServletActionContext.getServletContext().getRealPath("");
File root = new File(path);
File webapps = root.getParentFile();
//1.2.获取images的File
File images = new File(webapps, "images");
if (!images.exists()) {
images.mkdirs();
}
//1.3.新文件
String fileName = UUID.randomUUID().toString()+abcFileName.substring(abcFileName.lastIndexOf("."));
File newFile = new File(images, fileName);
//1.4.存放文件
try {
FileUtils.copyFile(abc, newFile);
//将文件路径存放到数据库中
String newPath = "/images/"+fileName;
//调用service向对应的表、记录中更新数据数据
account.setHeadImg(newPath);
accountService.addAccount(account);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(path);
return "success";
}
}
<!-- 文件上传 --> <action name="file_*" class="com.woniuxy.action.FileUploadAction" method="{1}"> <result name="success">html/success.html</result> </action>
标签：utils and 文件夹 content 简单的 nfa Servle load() eal
原文地址：https://www.cnblogs.com/harrypotterformhogwarts/p/10917762.html
