当用户单击Struts2 jquery网格的删除按钮时，卡在获取特定行的id

我正在使用Jquery Grid在struts 2中开发一个小应用程序来显示数据结果。

当我单击编辑按钮时，特定的行ID即将到来。 但是，当我单击删除按钮删除该行时，其ID不会出现。 使用所选行（Struts2 Jquery Grid）执行删除操作时如何获取行的id？

Plz帮我这个。

myJspFile.jsp

         @import url(/css/style1.css);     
        
 
   

MyActionClass.java

  /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package v.esoft.actions.subjectdetails; import com.opensymphony.xwork2.ActionSupport; import java.text.SimpleDateFormat; import com.opensymphony.xwork2.ModelDriven; import v.esoft.dao.SubjectdetailsDAO.SubjectdetailsDAO; import v.esoft.pojos.Subjectdetails; public class SubjectdetailsEditAction extends ActionSupport implements ModelDriven { private static final long serialVersionUID = -6659925652584240539L; private String oper; int subjectId; Subjectdetails subject=new Subjectdetails(); SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd"); SubjectdetailsDAO dao=new SubjectdetailsDAO(); @Override public Subjectdetails getModel() { return subject; } public String execute() throws Exception { System.out.println(subject.getSubjectId()); if(oper.equalsIgnoreCase("add")) { System.out.println ("inside action"); dao.saveOrUpdateSubject(subject); } else if (oper.equalsIgnoreCase("edit")) { dao.saveOrUpdateSubject(subject); } else if (oper.equalsIgnoreCase("del")) { System.out.println("subjectId"); System.out.println(subject.getSubjectId()); // dao.deleteSubject(subjectId); } return SUCCESS; } //--------------- public String getOper() { return oper; } public void setOper(String oper) { this.oper = oper; } public Subjectdetails getSubject() { return subject; } public void setSubject(Subjectdetails subject) { this.subject = subject; } public int getSubjectId() { return subjectId; } public void setSubjectId(int subjectId) { this.subjectId = subjectId; } } 

Subjectdetails.java [My pojo]

  package v.esoft.pojos; // Generated Oct 6, 2012 1:58:21 PM by Hibernate Tools 3.4.0.CR1 import java.util.Date; /** * Subjectdetails generated by hbm2java */ public class Subjectdetails implements java.io.Serializable { private int subjectId; private String subjectName; private Integer createrId; private Date createdDate; private Integer updateId; private Date updatedDate; public Subjectdetails() { } public Subjectdetails(int subjectId) { this.subjectId = subjectId; } public Subjectdetails(int subjectId, String subjectName, Integer createrId, Date createdDate, Integer updateId, Date updatedDate) { this.subjectId = subjectId; this.subjectName = subjectName; this.createrId = createrId; this.createdDate = createdDate; this.updateId = updateId; this.updatedDate = updatedDate; } public int getSubjectId() { return this.subjectId; } public void setSubjectId(int subjectId) { this.subjectId = subjectId; } public String getSubjectName() { return this.subjectName; } public void setSubjectName(String subjectName) { this.subjectName = subjectName; } public Integer getCreaterId() { return this.createrId; } public void setCreaterId(Integer createrId) { this.createrId = createrId; } public Date getCreatedDate() { return this.createdDate; } public void setCreatedDate(Date createdDate) { this.createdDate = createdDate; } public Integer getUpdateId() { return this.updateId; } public void setUpdateId(Integer updateId) { this.updateId = updateId; } public Date getUpdatedDate() { return this.updatedDate; } public void setUpdatedDate(Date updatedDate) { this.updatedDate = updatedDate; } } 

Answer 1

使用id而不是subjectId作为主键。 并再次创建您的SQL表和pojo。 然后它会工作。