hibernat use many-to-many---oracle

package serviceimp;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import po.Power;
import po.Role;

import service.PowerService;

@SuppressWarnings("unchecked")
public class PowerServiceImp extends BaseServiceImp implements PowerService {

	/**
	 * add update,delete role
	 * 
	 * @param id
	 * @param name
	 * @param oper
	 * @return
	 */
	public String edit_role(String id, String name, String oper) {
		// add
		if ("add".equals(oper)) {

			if (!this.isNull(name)) {
				Role r = new Role();
				r.setName(name.trim());
				this.saveOrUpdate(r);
			} else {
				return "请输入角色名称!";
			}
		}
		// edit
		if ("update".equals(oper)) {

			if (!this.isNull(name)) {
				Role r = (Role) this.get(Role.class, id);
				r.setName(name.trim());
				this.saveOrUpdate(r);
			} else {
				return "请输入角色名称!";
			}
		}
		// delete
		if ("delete".equals(oper)) {
			this.bulkUpdate("delete from Role as r where r.id='" + id + "'");
		}

		return "1";
	}

	/**
	 * add update,delete role
	 * 
	 * @param id
	 * @param name
	 * @param url
	 * @param oper
	 * @return
	 */
	public String edit_power(String id, String name, String url, String oper) {

		// add
		if ("add".equals(oper)) {
			if (this.isNull(name))
				return "请输入权限名称!";
			if (this.isNull(url))
				return "请输入角色url!";
			Power p = new Power(name.trim(), url.trim());
			this.saveOrUpdate(p);

		}
		// edit
		if ("update".equals(oper)) {

			if (this.isNull(name))
				return "请输入权限名称!";
			if (this.isNull(url))
				return "请输入角色url!";

			Power p = (Power) this.get(Power.class, id);
			p.setName(name.trim());
			p.setUrl(url.trim());
			this.saveOrUpdate(p);

		}
		// delete
		if ("delete".equals(oper)) {
			this.bulkUpdate("delete from Power as p where p.id='" + id + "'");
		}

		return "1";
	}

	/**
	 * 为角色分配权限
	 * 
	 * @param role_id
	 * @param power_id
	 * @return
	 */
	public String set_power_to_role(String role_id, String power_id[],
			String unpower_id[]) {

		try {

			@SuppressWarnings("unused")
			Role r = (Role) this.findAll(
					"from Role as r left join fetch r.powers where r.id='"
							+ role_id + "'").get(0);
			Set<Power> pset = r.getPowers();

			for (Iterator<Power> it = pset.iterator(); it.hasNext();) {

				Power p = it.next();
				// if (ArrayUtils.contains(unpower_id, p.getId())) {
				// p.getRoles().remove(r);
				// it.remove();
				// }
				for (int i = 0; i < unpower_id.length; i++) {

					if (p.getId().equals(unpower_id[i])) {
						// 删除权限
						p.getRoles().remove(r);
						it.remove();
					}
				}

			}

			for (int i = 0; i < power_id.length; i++) {

				if (power_id[i] != null && !power_id[i].trim().equals("")) {

					Power p = (Power) this.get(Power.class, power_id[i]);
					p.getRoles().add(r);
					pset.add(p);
				}
			}

			this.saveOrUpdate(r);
		} catch (Exception ex) {

			ex.printStackTrace();
			return "-1";
		}
		return "1";
	}

	/**
	 * 取角色权限
	 * 
	 * @param role_id
	 * @return
	 */

	public List list_powers_by_role_id(String role_id) {

		List t = new ArrayList();
		Role r = (Role) this.findAll(
				"from Role as r left join fetch r.powers  where r.id='" + role_id + "'").get(0);
		Set<Power> pset = r.getPowers();
		Iterator<Power> it = pset.iterator();
		while (it.hasNext()) {

			t.add(it.next().getName());
		}

		return t;
	}

	public List list_powers(int cur_page, int page_size) {
		// TODO Auto-generated method stub
		String hql = "select new Power(p.id,p.name,p.url) from Power as p";
		return this.findAllByPage01(hql, page_size, cur_page);
	}

	public List list_roles(int cur_page, int page_size) {
		// TODO Auto-generated method stub
		String hql = "select new Role(r.id,r.name) from Role as r";
		return this.findAllByPage01(hql, page_size, cur_page);
	}

}

启动oracle数据库时，提示没有监听器 

如果，你在控制面板/管理工具/服务中双击打开OracleOraHome92TNSListener的服务看到其“可执行文件的路径”一栏为空时的处理方法：


   首先运行regedit.exe启动注册表编辑器，在HKEY_LOCAL_MACHINE/SYSTEM/ControlSet002/下的Services和CurrentControlSet/Services下找到OracleOraHome92TNSListener项，在右边窗口按右键，新建/字符串，取名ImagePath。


   双击新见的建，在“数值数据”项输入D:\oracle\ora92\bin\TNSLSNR.EXE（根据你自己的实际情况进行修改），确定完成。    


   再次在服务中双击打开OracleOraHome92TNSListener的服务看到其“可执行文件的路径”一栏已经显示了其正确的值。这时你可以启动监听了。

package action;

import java.awt.image.BufferedImage;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.imageio.ImageIO;

import service.AdminService;
import service.ManagerService;
import service.UserService;

import com.opensymphony.xwork2.ActionSupport;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class BaseAction extends ActionSupport {

	private static final long serialVersionUID = 1L;
	@SuppressWarnings("unused")
	protected ManagerService managerService;
	protected AdminService adminService;

	protected UserService userService;

	public void setManagerService(ManagerService managerService) {
		this.managerService = managerService;
	}

	public void setAdminService(AdminService adminService) {
		this.adminService = adminService;
	}

	public UserService getUserService() {
		return userService;
	}

	public void setUserService(UserService userService) {
		this.userService = userService;
	}

	public boolean isNull(String str) {

		if (str == null || "".equals(str.trim())) {

			return true;
		}
		return false;
	}

	// 自己封装的一个把源文件对象复制成目标文件对象
	public boolean copy(File src, File dst) {
		InputStream in = null;
		OutputStream out = null;
		try {
			in = new BufferedInputStream(new FileInputStream(src), 1024);
			out = new BufferedOutputStream(new FileOutputStream(dst), 1024);
			byte[] buffer = new byte[1024];
			int len = 0;
			while ((len = in.read(buffer)) > 0) {
				out.write(buffer, 0, len);
			}
			return true;
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		} finally {
			if (null != in) {
				try {
					in.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (null != out) {
				try {
					out.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}

	/**
	 * 图像的等比缩略
	 * 
	 * @param fi大图文件
	 * @param fo将要转换出的小图文件
	 */
	public boolean resize_image(File fi, File fo) {
		try {
			// File fi = new File("E:/3.jpg"); // 大图文件
			// File fo = new File("E:/333.jpg"); // 将要转换出的小图文件

			// AffineTransform transform = new AffineTransform();
			BufferedImage bis = ImageIO.read(fi);

			int w = bis.getWidth();
			// System.out.println(w);
			int h = bis.getHeight();
			// System.out.println(h);
			// double scale = (double) w / h;
			int nw = w;
			int nh = h;
			if (w > 320) {
				nw = 320;
				nh = nw * h / w;
				if (nh > 320) {

					nh = 320;
					nw = nh * w / h;
				}
			} else if (h > 320) {

				nh = 320;
				nw = nh * w / h;
				if (nw > 320) {

					nw = 320;
					nh = nw * h / w;
				}
			}

			BufferedImage tag = new BufferedImage(nw, nh,
					BufferedImage.TYPE_INT_RGB);
			tag.getGraphics().drawImage(bis, 0, 0, nw, nh, null); // 绘制缩小后的图
			// 转换为32*32 jpg格式
			FileOutputStream newimage = new FileOutputStream(fo); // 输出到文件流
			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);
			encoder.encode(tag);
			newimage.close();
			return true;
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}

	}

	/**
	 * 图像的等比缩略
	 * 
	 * 
	 * width 输出图片大小 height
	 * 
	 * @param fi大图文件
	 * @param fo将要转换出的小图文件
	 */
	public boolean resize_image(File fi, File fo, int width, int height) {
		try {
			// File fi = new File("E:/3.jpg"); // 大图文件
			// File fo = new File("E:/333.jpg"); // 将要转换出的小图文件

			// AffineTransform transform = new AffineTransform();
			BufferedImage bis = ImageIO.read(fi);

			int w = bis.getWidth();
			// System.out.println(w);
			int h = bis.getHeight();
			// System.out.println(h);
			// double scale = (double) w / h;
			int nw = w;
			int nh = h;
			if (w > width) {
				nw = width;
				nh = nw * h / w;
				if (nh > height) {

					nh = height;
					nw = nh * w / h;
				}
			} else if (h > height) {

				nh = height;
				nw = nh * w / h;
				if (nw > width) {

					nw = width;
					nh = nw * h / w;
				}
			}

			BufferedImage tag = new BufferedImage(nw, nh,
					BufferedImage.TYPE_INT_RGB);
			tag.getGraphics().drawImage(bis, 0, 0, nw, nh, null); // 绘制缩小后的图
			// 转换为32*32 jpg格式
			FileOutputStream newimage = new FileOutputStream(fo); // 输出到文件流
			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);
			encoder.encode(tag);
			newimage.close();
			return true;
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}

	}

}

评论

1 楼 風一樣的男子 2010-06-26  

没用 code 标签包含代码
没结构