EASYUI之datagrid的新增和修改

EASYUI之datagrid的新增和修改

代码块

首先 咱们要先导个jar包

然后就是代码块了 在上一篇博客内容上要再加一些代码
PinYinUtil

package com.huangjie.util;

import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

/**
 * 拼音工具类，能将汉字转换成拼音的首字母
 */
public class PinYinUtil {
	// 名字长度
	private static int NAME_LENGTH = 3;

	/**
	 * 将首个汉字转换为全拼
	 * 其他是汉字首字母
	 * @param src
	 * @return
	 */
	public static String getPingYin(String src) {

		char[] name = src.toCharArray();
		String[] newName = new String[name.length];
		HanyuPinyinOutputFormat pyFormat = new HanyuPinyinOutputFormat();
		pyFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		pyFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		pyFormat.setVCharType(HanyuPinyinVCharType.WITH_V);
		String account = "";
		int length = name.length;
		try {
			// 名字大于等于3个字的时候，姓取全称,名取首字母。
			if(length>=NAME_LENGTH){
				for (int i = 0; i < length; i++) {
					// 截取姓
					if(i==0){
						// 判断是否为汉字字符
						if (Character.toString(name[i]).matches("[\\u4E00-\\u9FA5]+")) {
							newName = PinyinHelper.toHanyuPinyinStringArray(name[i], pyFormat);
							account += newName[0];
						} else
							account += Character.toString(name[i]);
					}else{
						account += getPinYinHeadChar(Character.toString(name[i]));
					}

				}
			}else{
				// 只有2个字的名字,账号是名字的拼音全称
				for (int i = 0; i < length; i++) {
					// 判断是否为汉字字符
					if (Character.toString(name[i]).matches("[\\u4E00-\\u9FA5]+")) {
						newName = PinyinHelper.toHanyuPinyinStringArray(name[i], pyFormat);
						account += newName[0];
					} else
						account += Character.toString(name[i]);
				}
			}
			return account;
		} catch (BadHanyuPinyinOutputFormatCombination e1) {
			e1.printStackTrace();
		}
		return account;
	}

	/**
	 * 全部汉字转换成拼音
	 * @param src
	 * @return
	 */
	public static String getAllPingYin(String src) {
		StringBuffer sb = new StringBuffer();
		String [] arr = src.split("");
		for (String s : arr) {
			sb.append(PinYinUtil.getPingYin(s));
		}
		return sb.toString();
	}

	/**
	 * 返回中文的首字母
	 * @param str
	 * @return
	 */
	public static String getPinYinHeadChar(String str) {

		String convert = "";
		for (int j = 0; j < str.length(); j++) {
			char word = str.charAt(j);
			String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
			if (pinyinArray != null) {
				convert += pinyinArray[0].charAt(0);
			} else {
				convert += word;
			}
		}
		return convert;
	}

	public static void main(String[] args) {
		String cn = "保存并插入数据库";
		System.out.println(PinYinUtil.getAllPingYin(cn));
		System.out.println(PinYinUtil.getPingYin(cn));
		System.out.println(PinYinUtil.getPinYinHeadChar(cn));
	}
}

MenuAction

package com.huangjie.web;

import java.sql.SQLException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.huangjie.dao.MenuDao;
import com.huangjie.entrty.Menu;

import com.huangjie.util.ResponseUtil;
import com.zking.framework.ActionSupport;
import com.zking.framework.ModelDriven;

public class MenuAction extends ActionSupport implements ModelDriven<Menu>{
	private Menu menu=new Menu();
	private MenuDao menuDao=new MenuDao();
	@Override
	public Menu getModel() {
		// TODO Auto-generated method stub
		return menu;
	}
	
	public String menuNodes(HttpServletRequest req,HttpServletResponse resp) {
		try {
			ResponseUtil.writeJSON(resp, menuDao.menuNode(null, null));
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
	
}

PermissionAction

package com.huangjie.web;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.huangjie.dao.PermissionDao;
import com.huangjie.entrty.Permission;
import com.huangjie.util.ResponseUtil;
import com.huangjie.vo.TreeVo;
import com.zking.framework.ActionSupport;
import com.zking.framework.ModelDriven;

public class PermissionAction extends ActionSupport implements ModelDriven<Permission>{
	private Permission permission=new Permission();
	private PermissionDao permissionDao=new PermissionDao();
	@Override
	public Permission getModel() {
		// TODO Auto-generated method stub
		return permission;
	}
	
	public String menuTree(HttpServletRequest req,HttpServletResponse resp) {
		try {
			//TreeVo<Permission> topeNode = this.permissionDao.topeNode(null, null);
			//List<TreeVo<Permission>> list=new ArrayList<TreeVo<Permission>>();
			//list.add(topNode);
			ResponseUtil.writeJSON(resp, this.permissionDao.topeNode(null, null));
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
}

PermissionDao

package com.huangjie.dao;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.huangjie.entrty.Permission;
import com.huangjie.util.BaseDao;
import com.huangjie.util.BuildTree;
import com.huangjie.util.PageBean;
import com.huangjie.vo.TreeVo;

public class PermissionDao extends BaseDao<Permission>{
	public List<Permission> list(Permission permission,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
		String sql="select * from t_easyui_permission";
		
		return executeQuery(sql,Permission.class, pageBean);
	}
	
	/*public TreeVo<Permission> topeNode(Permission permission,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
				List<Permission> list = this.list(permission, pageBean);
				//通过工具类完成指定格式的输出
				List<TreeVo<Permission>> nodes=new ArrayList<TreeVo<Permission>>();
				
				TreeVo treevo=null;
				for (Permission p : list) {
					treevo=new TreeVo<>();
					treevo.setId(p.getId()+"");
					treevo.setText(p.getName());
					treevo.setParentId(p.getPid()+"");
					Map<String, Object> attributes=new HashMap<String,Object>();
					attributes.put("self", p);
					treevo.setAttributes(attributes);
					nodes.add(treevo);
				}
				return BuildTree.build(nodes);
	}*/
	
	public List<TreeVo<Permission>> topeNode(Permission permission,PageBean pageBean) throws InstantiationException, IllegalAccessException, SQLException{
		List<Permission> list = this.list(permission, pageBean);
		//通过工具类完成指定格式的输出
		List<TreeVo<Permission>> nodes=new ArrayList<TreeVo<Permission>>();
		
		TreeVo treevo=null;
		for (Permission p : list) {
			treevo=new TreeVo<>();
			treevo.setId(p.getId()+"");
			treevo.setText(p.getName());
			treevo.setParentId(p.getPid()+"");
			Map<String, Object> attributes=new HashMap<String,Object>();
			attributes.put("self", p);
			treevo.setAttributes(attributes);
			nodes.add(treevo);
		}
		return BuildTree.buildList(nodes,"0");
}
	
	public static void main(String[] args) throws InstantiationException, IllegalAccessException, SQLException, JsonProcessingException {
		PermissionDao permissionDao=new PermissionDao();
		List<Permission> list = permissionDao.list(null, null);
		//通过工具类完成指定格式的输出
		List<TreeVo<Permission>> nodes=new ArrayList<TreeVo<Permission>>();
		//Permission的格式是不满足easyui的tree组件的展示数据格式的
		//目的：将List<Permission>转化为List<TreeVo<T>>
		//实现：将List<Permission>得到的单个Permission转成TreeVo，将TreeVo加入到nodes
		
		TreeVo treevo=null;
		for (Permission p : list) {
			treevo=new TreeVo<>();
			treevo.setId(p.getId()+"");
			treevo.setText(p.getName());
			treevo.setParentId(p.getPid()+"");
			/*Map<String, Object> attributes=new HashMap<String,Object>();
			attributes.put("self", p);
			treevo.setAttributes(attributes);*/
			nodes.add(treevo);
		}
		
		TreeVo<Permission> build = BuildTree.build(nodes);
		ObjectMapper om=new ObjectMapper();
		String jsonstr= om.writeValueAsString(build);
		System.out.println(jsonstr);
	}
}

Permission

package com.huangjie.entrty;

public class Permission {
	private long id;
	private String name;
	private String description;
	private String url;
	private long pid;
	private int ismenu;
	private long displayno;
	public long getId() {
		return id;
	}
	public void setId(long id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getDescription() {
		return description;
	}
	public void setDescription(String description) {
		this.description = description;
	}
	public String getUrl() {
		return url;
	}
	public void setUrl(String url) {
		this.url = url;
	}
	public long getPid() {
		return pid;
	}
	public void setPid(long pid) {
		this.pid = pid;
	}
	public int getIsmenu() {
		return ismenu;
	}
	public void setIsmenu(int ismenu) {
		this.ismenu = ismenu;
	}
	public long getDisplayno() {
		return displayno;
	}
	public void setDisplayno(long displayno) {
		this.displayno = displayno;
	}
	
	public Permission() {
		super();
	}
	public Permission(long id, String name, String description, String url, long pid, int ismenu, long displayno) {
		this.id = id;
		this.name = name;
		this.description = description;
		this.url = url;
		this.pid = pid;
		this.ismenu = ismenu;
		this.displayno = displayno;
	}
	@Override
	public String toString() {
		return "Permission [id=" + id + ", name=" + name + ", description=" + description + ", url=" + url + ", pid="
				+ pid + ", ismenu=" + ismenu + ", displayno=" + displayno + "]";
	}
	
}

ResponseUtil

package com.huangjie.util;

import java.io.PrintWriter;

import javax.servlet.http.HttpServletResponse;

import com.fasterxml.jackson.databind.ObjectMapper;

public class ResponseUtil {

	public static void write(HttpServletResponse response,Object o)throws Exception{
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		out.println(o.toString());
		out.flush();
		out.close();
	}
	
	public static void writeJSON(HttpServletResponse response,Object o)throws Exception{
		response.setContentType("text/html;charset=utf-8");
		ObjectMapper om=new ObjectMapper();
		String jsonstr= om.writeValueAsString(o);
		PrintWriter out=response.getWriter();
		out.println(jsonstr.toString());
		out.flush();
		out.close();
	}
}

Result

package com.huangjie.util;

public class Result<T> {
	//响应结果集
	private int code;
	private String mshg;
	private T data;
	
	public static Result SUCCESS=new Result<>(200, "操作成功");
	
	public static <T> Result ok(T data) {
		return new Result<T>(data);
	}
	public int getCode() {
		return code;
	}

	public void setCode(int code) {
		this.code = code;
	}

	public String getMshg() {
		return mshg;
	}

	public void setMshg(String mshg) {
		this.mshg = mshg;
	}

	public T getData() {
		return data;
	}

	public void setData(T data) {
		this.data = data;
	}

	public Result(int code, String mshg) {
		super();
		this.code = code;
		this.mshg = mshg;
	}

	public Result() {
		super();
	}
	public Result(T data) {
		super();
		this.data = data;
	}
	
	
	
}

PageTag

package com.huangjie.tag;

import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;

import com.huangjie.util.PageBean;

public class PageTag extends BodyTagSupport{

	private static final long serialVersionUID = 1L;
	
	private PageBean pageBean;

	public PageBean getPageBean() {
		return pageBean;
	}

	public void setPageBean(PageBean pageBean) {
		this.pageBean = pageBean;
	}

	public static long getSerialversionuid() {
		return serialVersionUID;
	}
	
	@Override
	public int doStartTag() throws JspException {
		// TODO Auto-generated method stub
		JspWriter out = pageContext.getOut();
		try {
			out.print(toHTML());
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return super.doStartTag();
	}

	
	private String toHTML() {
        StringBuilder sb = new StringBuilder();

//        这里拼接的是一个上一次发送的请求以及携带的参数，唯一改变的就是页码
        sb.append("<form id='pageBeanForm' action='"+pageBean.getUrl()+"' method='post'>");
        sb.append("<input type='hidden' name='methodName' value='list'>");
        sb.append("<input type='hidden' name='page'>");
//        重要设置拼接操作，将上一次请求参数携带到下一次
        Map<String, String[]> paMap = pageBean.getParameterMap();
        if(paMap !=null && paMap.size()>0){
            Set<Map.Entry<String, String[]>> entrySet = paMap.entrySet();
            for (Map.Entry<String, String[]> entry : entrySet) {
                for (String val : entry.getValue()) {
                    if(!"page".equals(entry.getKey())){
                        sb.append("<input type='hidden' name='"+entry.getKey()+"' value='"+val+"'>");
                    }
                }
            }
        }
        sb.append("</form>");


        int page = pageBean.getPage();
        int max = pageBean.getMaxPage();
        int before = page > 4 ? 4 : page-1;
        int after = 10 - 1 - before;
        after = page+after > max ? max-page : after;
//        disabled
        boolean startFlag = page == 1;
        boolean endFlag = max == page;

//        拼接分页条
        sb.append("<ul class='pagination'>");
        sb.append("<li class='page-item "+(startFlag ? "disabled" : "")+"'><a class='page-link' href='javascript:gotoPage(1)'>首页</a></li>");
        sb.append("<li class='page-item "+(startFlag ? "disabled" : "")+"'><a class='page-link' href='javascript:gotoPage("+pageBean.getPrevPage()+")'>&lt;</a></li>");

//        代表了当前页的前4页
        for (int i = before; i > 0 ; i--) {
            sb.append("<li class='page-item'><a class='page-link' href='javascript:gotoPage("+(page-i)+")'>"+(page-i)+"</a></li>");
        }

        sb.append("<li class='page-item active'><a class='page-link' href='javascript:gotoPage("+pageBean.getPage()+")'>"+pageBean.getPage()+"</a></li>");

//        代表了当前页的后5页
        for (int i = 1; i <= after; i++) {
            sb.append("<li class='page-item'><a class='page-link' href='javascript:gotoPage("+(page+i)+")'>"+(page+i)+"</a></li>");
        }

        sb.append("<li class='page-item "+(endFlag ? "disabled" : "")+"'><a class='page-link' href='javascript:gotoPage("+pageBean.getNextPage()+")'>&gt;</a></li>");
        sb.append("<li class='page-item "+(endFlag ? "disabled" : "")+"'><a class='page-link' href='javascript:gotoPage("+pageBean.getMaxPage()+")'>尾页</a></li>");
        sb.append("<li class='page-item go-input'><b>到第</b><input class='page-link' type='text' id='skipPage' name='' /><b>页</b></li>");
        sb.append("<li class='page-item go'><a class='page-link' href='javascript:skipPage()'>确定</a></li>");
        sb.append("<li class='page-item'><b>共"+pageBean.getTotal()+"条</b></li>");
        sb.append("</ul>");

//        拼接分页的js代码
        sb.append("<script type='text/javascript'>");
        sb.append("function gotoPage(page) {");
        sb.append("document.getElementById('pageBeanForm').page.value = page;");
        sb.append("document.getElementById('pageBeanForm').submit();");
        sb.append("}");
        sb.append("function skipPage() {");
        sb.append("var page = document.getElementById('skipPage').value;");
        sb.append("if (!page || isNaN(page) || parseInt(page) < 1 || parseInt(page) > "+max+") {");
        sb.append("alert('请输入1~N的数字');");
        sb.append("return;");
        sb.append("}");
        sb.append("gotoPage(page);");
        sb.append("}");
        sb.append("</script>");

        return sb.toString();
    }
}

总结

今天的内容就这么多啦 要 一起加油哈哈哈哈！！！

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