【Java】Struts2+Hibernate写的一个学生管理系统

package chao.action; import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.sql.Blob; import java.util.List; import java.util.Map; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import org.hibernate.Hibernate; import chao.model.Xsb; import chao.service.XsService; import chao.service.ZyService; import chao.serviceimp.XsServiceImp; import chao.serviceimp.ZyServiceImp; import chao.tool.Pager; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import com.sun.org.apache.bcel.internal.generic.GETSTATIC; public class XsAction extends ActionSupport { private int pageNow = 1; private int pageSize = 8; private List list; private Xsb xs; private File zp; private String zpFileName; XsService xsService = new XsServiceImp(); ZyService zyService = new ZyServiceImp(); public List getList() { return zyService.getAll(); } public void setList(List list) { this.list = list; } public int getPageNow() { return pageNow; } public void setPageNow(int pageNow) { this.pageNow = pageNow; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public Xsb getXs() { return xs; } public void setXs(Xsb xs) { this.xs = xs; } public File getZp() { return zp; } public void setZp(File zp) { this.zp = zp; } public String getZpFileName() { return zpFileName; } public void setZpFileName(String zpFileName) { this.zpFileName = zpFileName; } public String execute() throws Exception { List list = xsService.findAll(pageNow, pageSize); Map request = (Map) ActionContext.getContext().get("request"); Pager page = new Pager(pageNow, xsService.findXsSize()); request.put("list", list); request.put("page", page); return SUCCESS; } public String addXsView() throws Exception { List zys = zyService.getAll(); Map request = (Map) ActionContext.getContext().get("request"); request.put("zys", zys); return SUCCESS; } public String addXs() throws Exception { Xsb stu = new Xsb(); String xh = xs.getXh(); if (xsService.find(xh) != null) { return ERROR; } stu.setXh(xs.getXh()); stu.setXm(xs.getXm()); stu.setXb(xs.getXb()); stu.setCssj(xs.getCssj()); stu.setZyb(zyService.getOneZy(xs.getZyb().getId())); stu.setZxf(xs.getZxf()); stu.setBz(xs.getBz()); if (this.getZp() != null) { FileInputStream in=new FileInputStream(this.getZp()); byte buffer[]=new byte[(int)zp.length()]; in.read(buffer); stu.setZp(buffer); } xsService.save(stu); return SUCCESS; } public String getImage() throws Exception{ HttpServletResponse response=ServletActionContext.getResponse(); response.setContentType("image/jpeg"); String xh=xs.getXh(); Xsb stu3=xsService.find(xh); byte[] img=stu3.getZp(); ServletOutputStream os=response.getOutputStream(); try{ if(img!=null&&img.length!=0) { for(int i=0;i<img.length;i++) { os.write(img); } os.flush(); } } catch(Exception e) { } return NONE; } public String findXs() throws Exception { String xh = xs.getXh(); Xsb stu2 = xsService.find(xh); Map request = (Map) ActionContext.getContext().get("request"); request.put("xs", stu2); return SUCCESS; } public String deleteXs() throws Exception { String xh = xs.getXh(); xsService.delete(xh); return SUCCESS; } public String updateXsView() throws Exception { String xh = xs.getXh(); Xsb xsInfo = xsService.find(xh); List zys = zyService.getAll(); Map request = (Map) ActionContext.getContext().get("request"); request.put("xsInfo", xsInfo); request.put("zys", zys); return SUCCESS; } public String updateXs() throws Exception { Xsb xs1 = xsService.find(xs.getXh()); xs1.setXm(xs.getXm()); xs1.setXb(xs.getXb()); xs1.setZyb(zyService.getOneZy(xs.getZyb().getId())); xs1.setCssj(xs.getCssj()); xs1.setZxf(xs.getZxf()); xs1.setBz(xs.getBz()); if (this.getZp() != null) { FileInputStream in=new FileInputStream(this.getZp()); byte buffer[]=new byte[(int)zp.length()]; in.read(buffer); xs1.setZp(buffer); } Map request = (Map) ActionContext.getContext().get("request"); xsService.update(xs1); return SUCCESS; } }