拾拾Welcome Huihui's Code World ! !拾拾

接下来看看由辉辉所写的关于Eclipse使用的相关操作吧

目录

拾拾Welcome Huihui's Code World ! !拾拾

一.导读

二.详细操作步骤 

 1.右击项目处,点击import

 2.选择所要导入的项目所在路径

 3.导入项目完毕之后,需要检查是否有错误

 4.若报错,则检查配置的文件是否出现了问题

 5.将报错的文件移除掉

 6.重新配置一个文件(注意版本)

 7.项目不报错之后,我们来看一下数据库辅助类​编辑

 8.核对账号密码的信息

 9.再选择需要导入的对应数据库脚本

10.选择运行的jsp界面即可,若成功运行,则没有问题

11.我们再参照这个项目中的代码,完成一个简单的增删改查

entity

dao

servlet

运行结果

一.导读

上篇我们已经详细介绍了开发工具eclipse,也说明了eclipse的基本使用,那么我们这篇来详细讲述一下怎么导入项目

二.详细操作步骤 

1.右击项目处,点击import

2.选择所要导入的项目所在路径

 3.导入项目完毕之后,需要检查是否有错误

  4.若报错,则检查配置的文件是否出现了问题

 5.将报错的文件移除掉

 6.重新配置一个文件(注意版本)

 7.项目不报错之后,我们来看一下数据库辅助类

 8.核对账号密码的信息

 9.再选择需要导入的对应数据库脚本

 10.选择运行的jsp界面即可,若成功运行,则没有问题

11.我们再参照这个项目中的代码,完成一个简单的增删改查

entity

package com.wh.entity;

public class Cat {

int cid;

String cname;

int age;

public Cat() {

// TODO Auto-generated constructor stub

}

public Cat(int cid, String cname, int age) {

super();

this.cid = cid;

this.cname = cname;

this.age = age;

}

public int getCid() {

return cid;

}

public void setCid(int cid) {

this.cid = cid;

}

public String getCname() {

return cname;

}

public void setCname(String cname) {

this.cname = cname;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

@Override

public String toString() {

return "Cat [cid=" + cid + ", cname=" + cname + ", age=" + age + "]";

}

}

dao

package com.wh.dao;

import java.util.List;

import com.zking.util.BaseDao;

import com.zking.util.PageBean;

import com.zking.util.StringUtils;

public class CatDao extends BaseDao{

public List list(Cat cat,PageBean pageBean) throws Exception{

String sql = "select * from t_mvc_cat where 1 =1 ";

String title = cat.getCname();

int id = cat.getCid();

if(StringUtils.isNotBlank(title)) {

sql += " and title like '%"+title+"%'";

}

if(id != 0) {

sql += " and cid = "+id;

}

return super.executeQuery(sql, Cat.class, pageBean);

}

public void add(Cat cat) throws Exception {

String sql = "insert into t_mvc_cat(cid,cname,age) values(?,?,?)";

super.executeUpdate(sql, cat, new String[] {"cid","cname","age"});

}

public void delete(Cat cat) throws Exception {

String sql = "delete from t_mvc_cat where cid = ?";

super.executeUpdate(sql, cat, new String[] {"cid"});

}

public void edit(Cat cat) throws Exception {

String sql = "update t_mvc_cat set cname = ?,age = ? where cid = ?";

super.executeUpdate(sql, cat, new String[] {"cname","age","cid"});

}

}

servlet

package com.wh.web;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.wh.dao.CatDao;

import com.zking.entity.Cat;

import com.zking.framework.ActionSupport;

import com.zking.framework.ModelDriver;

import com.zking.util.PageBean;

public class CatAction extends ActionSupport implements ModelDriver{

public Cat cat = new Cat();

public CatDao catDao = new CatDao();

@Override

public Cat getModel() {

return cat;

}

public String list(HttpServletRequest req, HttpServletResponse resp) {

// 查数据库的

PageBean pageBean = new PageBean();

pageBean.setRequest(req);

try {

List list = catDao.list(cat, pageBean);

req.setAttribute("cats", list);

req.setAttribute("pageBean", pageBean);

} catch (Exception e) {

e.printStackTrace();

}

return "list";

}

public String add(HttpServletRequest req, HttpServletResponse resp) {

try {

catDao.add(cat);

} catch (Exception e) {

e.printStackTrace();

}

return "toList";

}

public String delete(HttpServletRequest req, HttpServletResponse resp) {

try {

catDao.delete(cat);

} catch (Exception e) {

e.printStackTrace();

}

return "toList";

}

public String edit(HttpServletRequest req, HttpServletResponse resp) {

try {

catDao.edit(cat);

} catch (Exception e) {

e.printStackTrace();

}

return "toList";

}

public String toEdit(HttpServletRequest req, HttpServletResponse resp) {

if(cat.getCid()!= 0) {

try {

List list = catDao.list(cat, null);

req.setAttribute("c", list.get(0));

} catch (Exception e) {

e.printStackTrace();

}

}

return "toEdit";

}

}

 运行结果

       好啦,今天的分享就到这了,希望能够帮到你呢!             

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