dellink.java

在线音乐系统。使用struts2完成。挺好的

package Pluto.admin;

import java.io.PrintWriter;

import org.apache.struts2.ServletActionContext;

import Pluto.DBConnection;
import Pluto.function;

import com.opensymphony.xwork2.ActionSupport;

public class dellink extends ActionSupport {
	private String id;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	@Override
	public String execute() throws Exception {
		ServletActionContext.getResponse().setCharacterEncoding("GB2312");
		PrintWriter out = ServletActionContext.getResponse().getWriter();
		ServletActionContext.getResponse().setHeader("Pragma", "No-cache");
		ServletActionContext.getResponse().setHeader("Cache-Control",
				"no-cache");
		ServletActionContext.getResponse().setDateHeader("Expires", 0);

		if (function.isInvalid(id)) {
			out.println(function.PlutoJump("出现错误！", "link.jsp"));
		}

		DBConnection conn = new DBConnection();

		boolean del = conn.execute("delete from link where id=" + id
				+ " limit 1");
		if (del) {
			out.println(function.PlutoJump("删除成功", "link.jsp"));
		} else {
			out.println(function.PlutoJump("删除失败", "link.jsp"));
		}

		return null;
	}
}