page類
包含了頁(yè)面的信息
import com.zipx.util.PageData;
import com.zipx.util.Tools;
public class Page {
private int showCount; //每頁(yè)顯示記錄數(shù)
private int totalPage; //總頁(yè)數(shù)
private int totalResult; //總記錄數(shù)
private int currentPage; //當(dāng)前頁(yè)
private int currentResult; //當(dāng)前記錄起始索引
private String pageStr;//最終頁(yè)面顯示的底部翻頁(yè)導(dǎo)航ul，采用bootstrap樣式
private PageData pd = new PageData();//保存查詢條件
public Page(){
this.showCount = 10;//默認(rèn)10條
}
public int getTotalPage() {
if(totalResult!=0){
if(totalResult%showCount==0)
totalPage = totalResult/showCount;
else
totalPage = totalResult/showCount+1;
}else{
totalPage=1;
}
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public int getTotalResult() {
return totalResult;
}
public void setTotalResult(int totalResult) {
this.totalResult = totalResult;
}
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public void setPageStr(String pageStr) {
this.pageStr=pageStr;
}
public int getShowCount() {
return showCount;
}
public void setShowCount(int showCount) {
this.showCount = showCount;
}
public int getCurrentResult() {
currentResult = (getCurrentPage()-1)*getShowCount();
if(currentResult<0)
currentResult = 0;
return currentResult;
}
public void setCurrentResult(int currentResult) {
this.currentResult = currentResult;
}
public PageData getPd() {
return pd;
}
public void setPd(PageData pd) {
this.pd = pd;
}
public String getPageStr(){
return this.pageStr;
}
public static void PageStr(Page p){
int lastPage =p.getTotalPage();
int currentPage=p.getCurrentPage();
if(lastPage==0){
lastPage=1;
currentPage=1;
}
StringBuilder sb=new StringBuilder("<ul class='pagination pagination-lg'>");
String s1="";
String s2="";
if(currentPage==1){
s1="disabled";//禁用上一頁(yè)
}
if(currentPage==lastPage||lastPage==0){
s2="disabled";//禁用下一頁(yè)
}
if(s1.equals("disabled")){
sb.append("<li class='"+s1+"'><a>?</a></li>");
}else{
sb.append("<li class='"+s1+"'><a onclick=\"toPage("+(currentPage-1)+")\" >?</a></li>");
}
if(currentPage-1>=4){//前面至少4頁(yè)
sb.append("<li><a onclick=\"toPage(1)\">1</a></li>");//第一頁(yè)
sb.append("<li class=\""+"disabled"+"\"><span>...</span></li>");//省略號(hào)
if(currentPage==lastPage){//如果是最后一頁(yè)
sb.append("<li><a onclick=\"toPage("+(currentPage-3)+")\" >"+(currentPage-3)+"</a></li>");//前三頁(yè)
}
sb.append("<li><a onclick=\"toPage("+(currentPage-2)+")\" >"+(currentPage-2)+"</a></li>");//前二頁(yè)
sb.append("<li><a onclick=\"toPage("+(currentPage-1)+")\" >"+(currentPage-1)+"</a></li>");//前一頁(yè)
}else {
for(int i=1;i<currentPage;i++){
sb.append("<li><a onclick=\"toPage("+i+")\" >"+i+"</a></li>");//前面不超過(guò)4頁(yè)把前面的都顯示出來(lái)
}
}
sb.append("<li class=\"active\"><a onclick=\"toPage("+currentPage+")\" >"+currentPage+"</a></li>");//加上當(dāng)前頁(yè)碼
if(lastPage-currentPage>=4){//后面至少4頁(yè)
sb.append("<li><a onclick=\"toPage("+(currentPage+1)+")\">"+(currentPage+1)+"</a></li>");//后一頁(yè)
sb.append("<li><a onclick=\"toPage("+(currentPage+2)+")\">"+(currentPage+2)+"</a></li>");//后二頁(yè)
if(currentPage==1){//如果是第一頁(yè)
sb.append("<li><a onclick=\"toPage("+(currentPage+3)+")\" >"+(currentPage+3)+"</a></li>");//第三頁(yè)
}
sb.append("<li class=\""+"disabled"+"\"><span>...</span></li>");//省略號(hào)
sb.append("<li><a onclick=\"toPage("+lastPage+")\" >"+lastPage+"</a></li>");//最后頁(yè)
}else{
for(int i=currentPage+1;i<=lastPage;i++){
sb.append("<li><a onclick=\"toPage("+i+")\" >"+i+"</a></li>");//后面不超過(guò)4頁(yè)把后面的都顯示出來(lái)
}
}
if(s2.equals("disabled")){
sb.append("<li class='"+s2+"'><a>?</a></li>");
}else{
sb.append("<li class=\""+s2+"\"><a onclick=\"toPage("+(currentPage+1)+")\" >?</a></li>");
}
sb.append("</ul>");
p.setPageStr(sb.toString());
}
}
反射工具類
import java.lang.reflect.Field;
/**
* @author Administrator
* 反射工具
*/
public class ReflectHelper {
/**
* 獲取obj對(duì)象fieldName的Field
* @param obj
* @param fieldName
* @return
*/
public static Field getFieldByFieldName(Object obj, String fieldName) {
for (Class<?> superClass = obj.getClass(); superClass != Object.class; superClass = superClass
.getSuperclass()) {
try {
return superClass.getDeclaredField(fieldName);
} catch (NoSuchFieldException e) {
}
}
return null;
}
/**
* 獲取obj對(duì)象fieldName的屬性值
* @param obj
* @param fieldName
* @return
* @throws SecurityException
* @throws NoSuchFieldException
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public static Object getValueByFieldName(Object obj, String fieldName)
throws SecurityException, NoSuchFieldException,
IllegalArgumentException, IllegalAccessException {
Field field = getFieldByFieldName(obj, fieldName);
Object value = null;
if(field!=null){
if (field.isAccessible()) {
value = field.get(obj);
} else {
field.setAccessible(true);
value = field.get(obj);
field.setAccessible(false);
}
}
return value;
}
/**
* 設(shè)置obj對(duì)象fieldName的屬性值
* @param obj
* @param fieldName
* @param value
* @throws SecurityException
* @throws NoSuchFieldException
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public static void setValueByFieldName(Object obj, String fieldName,
Object value) throws SecurityException, NoSuchFieldException,
IllegalArgumentException, IllegalAccessException {
Field field = obj.getClass().getDeclaredField(fieldName);
if (field.isAccessible()) {
field.set(obj, value);
} else {
field.setAccessible(true);
field.set(obj, value);
field.setAccessible(false);
}
}
}
通用工具類
一個(gè)普普通通的類
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Tools {
/**
* 隨機(jī)生成六位數(shù)驗(yàn)證碼
* @return
*/
public static int getRandomNum(){
Random r = new Random();
return r.nextInt(900000)+100000;//(Math.random()*(999999-100000)+100000)
}
/**
* 檢測(cè)字符串是否不為空(null,"","null")
* @param s
* @return 不為空則返回true，否則返回false
*/
public static boolean notEmpty(String s){
return s!=null && !"".equals(s) && !"null".equals(s);
}
/**
* 檢測(cè)字符串是否為空(null,"","null")
* @param s
* @return 為空則返回true，不否則返回false
*/
public static boolean isEmpty(String s){
return s==null || "".equals(s) || "null".equals(s);
}
/**
* 字符串轉(zhuǎn)換為字符串?dāng)?shù)組
* @param str 字符串
* @param splitRegex 分隔符
* @return
*/
public static String[] str2StrArray(String str,String splitRegex){
if(isEmpty(str)){
return null;
}
return str.split(splitRegex);
}
/**
* 用默認(rèn)的分隔符(,)將字符串轉(zhuǎn)換為字符串?dāng)?shù)組
* @param str 字符串
* @return
*/
public static String[] str2StrArray(String str){
return str2StrArray(str,",\\s*");
}
/**
* 按照yyyy-MM-dd HH:mm:ss的格式为肮，日期轉(zhuǎn)字符串
* @param date
* @return yyyy-MM-dd HH:mm:ss
*/
public static String date2Str(Date date){
return date2Str(date,"yyyy-MM-dd HH:mm:ss");
}
/**
* 按照yyyy-MM-dd HH:mm:ss的格式，字符串轉(zhuǎn)日期
* @param date
* @return
*/
public static Date str2Date(String date){
if(notEmpty(date)){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
return sdf.parse(date);
} catch (ParseException e) {
e.printStackTrace();
}
return new Date();
}else{
return null;
}
}
/**
* 按照參數(shù)format的格式肤京，日期轉(zhuǎn)字符串
* @param date
* @param format
* @return
*/
public static String date2Str(Date date,String format){
if(date!=null){
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(date);
}else{
return "";
}
}
/**
* 把時(shí)間根據(jù)時(shí)颊艳、分、秒轉(zhuǎn)換為時(shí)間段
* @param StrDate
*/
public static String getTimes(String StrDate){
String resultTimes = "";
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
java.util.Date now;
try {
now = new Date();
java.util.Date date=df.parse(StrDate);
long times = now.getTime()-date.getTime();
long day = times/(24*60*60*1000);
long hour = (times/(60*60*1000)-day*24);
long min = ((times/(60*1000))-day*24*60-hour*60);
long sec = (times/1000-day*24*60*60-hour*60*60-min*60);
StringBuffer sb = new StringBuffer();
//sb.append("發(fā)表于：");
if(hour>0 ){
sb.append(hour+"小時(shí)前");
} else if(min>0){
sb.append(min+"分鐘前");
} else{
sb.append(sec+"秒前");
}
resultTimes = sb.toString();
} catch (ParseException e) {
e.printStackTrace();
}
return resultTimes;
}
/**
* 寫txt里的單行內(nèi)容
* @param filePath 文件路徑
* @param content 寫入的內(nèi)容
*/
public static void writeFile(String fileP,String content){
String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""))+"../../"; //項(xiàng)目路徑
filePath = (filePath.trim() + fileP.trim()).substring(6).trim();
if(filePath.indexOf(":") != 1){
filePath = File.separator + filePath;
}
try {
OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(filePath),"utf-8");
BufferedWriter writer=new BufferedWriter(write);
writer.write(content);
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 驗(yàn)證郵箱
* @param email
* @return
*/
public static boolean checkEmail(String email){
boolean flag = false;
try{
String check = "^([a-z0-9A-Z]+[-|_|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
Pattern regex = Pattern.compile(check);
Matcher matcher = regex.matcher(email);
flag = matcher.matches();
}catch(Exception e){
flag = false;
}
return flag;
}
/**
* 驗(yàn)證手機(jī)號(hào)碼
* @param mobiles
* @return
*/
public static boolean checkMobileNumber(String mobileNumber){
boolean flag = false;
try{
Pattern regex = Pattern.compile("^(((13[0-9])|(15([0-3]|[5-9]))|(18[0,5-9]))\\d{8})|(0\\d{2}-\\d{8})|(0\\d{3}-\\d{7})$");
Matcher matcher = regex.matcher(mobileNumber);
flag = matcher.matches();
}catch(Exception e){
flag = false;
}
return flag;
}
/**
* 檢測(cè)KEY是否正確
* @param paraname 傳入?yún)?shù)
* @param FKEY 接收的 KEY
* @return 為空則返回true，不否則返回false
*/
public static boolean checkKey(String paraname, String FKEY){
paraname = (null == paraname)? "":paraname;
return MD5.md5(paraname+DateUtil.getDays()+",fh,").equals(FKEY);
}
/**
* 讀取txt里的單行內(nèi)容
* @param filePath 文件路徑
*/
public static String readTxtFile(String fileP) {
try {
String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""))+"../../"; //項(xiàng)目路徑
filePath = filePath.replaceAll("file:/", "");
filePath = filePath.replaceAll("%20", " ");
filePath = filePath.trim() + fileP.trim();
if(filePath.indexOf(":") != 1){
filePath = File.separator + filePath;
}
String encoding = "utf-8";
File file = new File(filePath);
if (file.isFile() && file.exists()) { // 判斷文件是否存在
InputStreamReader read = new InputStreamReader(
new FileInputStream(file), encoding); // 考慮到編碼格式
BufferedReader bufferedReader = new BufferedReader(read);
String lineTxt = null;
while ((lineTxt = bufferedReader.readLine()) != null) {
return lineTxt;
}
read.close();
}else{
System.out.println("找不到指定的文件,查看此路徑是否正確:"+filePath);
}
} catch (Exception e) {
System.out.println("讀取文件內(nèi)容出錯(cuò)");
}
return "";
}
}
分頁(yè)插件類
分頁(yè)最主要的類
import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import java.util.Properties;
import javax.xml.bind.PropertyException;
import org.apache.ibatis.executor.ErrorContext;
import org.apache.ibatis.executor.ExecutorException;
import org.apache.ibatis.executor.statement.BaseStatementHandler;
import org.apache.ibatis.executor.statement.RoutingStatementHandler;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.mapping.ParameterMode;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.reflection.property.PropertyTokenizer;
import org.apache.ibatis.scripting.xmltags.ForEachSqlNode;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.type.TypeHandler;
import org.apache.ibatis.type.TypeHandlerRegistry;
import com.zipx.entity.Page;
import com.zipx.util.ReflectHelper;
import com.zipx.util.Tools;
@Intercepts({@Signature(type=StatementHandler.class,method="prepare",args={Connection.class})})
public class PagePlugin implements Interceptor {
private static String dialect = ""; //數(shù)據(jù)庫(kù)方言
private static String pageSqlId = ""; //mapper.xml中需要攔截的ID(正則匹配)
public Object intercept(Invocation ivk) throws Throwable {
// TODO Auto-generated method stub
if(ivk.getTarget() instanceof RoutingStatementHandler){
RoutingStatementHandler statementHandler = (RoutingStatementHandler)ivk.getTarget();
BaseStatementHandler delegate = (BaseStatementHandler) ReflectHelper.getValueByFieldName(statementHandler, "delegate");
MappedStatement mappedStatement = (MappedStatement) ReflectHelper.getValueByFieldName(delegate, "mappedStatement");
if(mappedStatement.getId().matches(pageSqlId)){ //攔截需要分頁(yè)的SQL
BoundSql boundSql = delegate.getBoundSql();
Object parameterObject = boundSql.getParameterObject();//分頁(yè)SQL<select>中parameterType屬性對(duì)應(yīng)的實(shí)體參數(shù)棋枕，即Mapper接口中執(zhí)行分頁(yè)方法的參數(shù),該參數(shù)不得為空
if(parameterObject==null){
throw new NullPointerException("parameterObject尚未實(shí)例化白修！");
}else{
Connection connection = (Connection) ivk.getArgs()[0];
String sql = boundSql.getSql();
//String countSql = "select count(0) from (" + sql+ ") as tmp_count"; //記錄統(tǒng)計(jì)
String countSql = "select count(0) from (" + sql+ ") tmp_count"; //記錄統(tǒng)計(jì) == oracle 加 as 報(bào)錯(cuò)(SQL command not properly ended)
PreparedStatement countStmt = connection.prepareStatement(countSql);
BoundSql countBS = new BoundSql(mappedStatement.getConfiguration(),countSql,boundSql.getParameterMappings(),parameterObject);
setParameters(countStmt,mappedStatement,countBS,parameterObject);
ResultSet rs = countStmt.executeQuery();
int count = 0;
if (rs.next()) {
count = rs.getInt(1);
}
rs.close();
countStmt.close();
//System.out.println(count);
Page page = null;
if(parameterObject instanceof Page){ //參數(shù)就是Page實(shí)體
page = (Page) parameterObject;
page.setEntityOrField(true);
page.setTotalResult(count);
}else{ //參數(shù)為某個(gè)實(shí)體，該實(shí)體擁有Page屬性
Field pageField = ReflectHelper.getFieldByFieldName(parameterObject,"page");
if(pageField!=null){
page = (Page) ReflectHelper.getValueByFieldName(parameterObject,"page");
if(page==null)
page = new Page();
page.setEntityOrField(false);
page.setTotalResult(count);
ReflectHelper.setValueByFieldName(parameterObject,"page", page); //通過(guò)反射重斑，對(duì)實(shí)體對(duì)象設(shè)置分頁(yè)對(duì)象
}else{
throw new NoSuchFieldException(parameterObject.getClass().getName()+"不存在 page 屬性兵睛！");
}
}
String pageSql = generatePageSql(sql,page);
ReflectHelper.setValueByFieldName(boundSql, "sql", pageSql); //將分頁(yè)sql語(yǔ)句反射回BoundSql.
}
}
}
return ivk.proceed();
}
/**
* 對(duì)SQL參數(shù)(?)設(shè)值,參考o(jì)rg.apache.ibatis.executor.parameter.DefaultParameterHandler
* @param ps
* @param mappedStatement
* @param boundSql
* @param parameterObject
* @throws SQLException
*/
private void setParameters(PreparedStatement ps,MappedStatement mappedStatement,BoundSql boundSql,Object parameterObject) throws SQLException {
ErrorContext.instance().activity("setting parameters").object(mappedStatement.getParameterMap().getId());
List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
if (parameterMappings != null) {
Configuration configuration = mappedStatement.getConfiguration();
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
MetaObject metaObject = parameterObject == null ? null: configuration.newMetaObject(parameterObject);
for (int i = 0; i < parameterMappings.size(); i++) {
ParameterMapping parameterMapping = parameterMappings.get(i);
if (parameterMapping.getMode() != ParameterMode.OUT) {
Object value;
String propertyName = parameterMapping.getProperty();
PropertyTokenizer prop = new PropertyTokenizer(propertyName);
if (parameterObject == null) {
value = null;
} else if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
value = parameterObject;
} else if (boundSql.hasAdditionalParameter(propertyName)) {
value = boundSql.getAdditionalParameter(propertyName);
} else if (propertyName.startsWith(ForEachSqlNode.ITEM_PREFIX)&& boundSql.hasAdditionalParameter(prop.getName())) {
value = boundSql.getAdditionalParameter(prop.getName());
if (value != null) {
value = configuration.newMetaObject(value).getValue(propertyName.substring(prop.getName().length()));
}
} else {
value = metaObject == null ? null : metaObject.getValue(propertyName);
}
TypeHandler typeHandler = parameterMapping.getTypeHandler();
if (typeHandler == null) {
throw new ExecutorException("There was no TypeHandler found for parameter "+ propertyName + " of statement "+ mappedStatement.getId());
}
typeHandler.setParameter(ps, i + 1, value, parameterMapping.getJdbcType());
}
}
}
}
/**
* 根據(jù)數(shù)據(jù)庫(kù)方言，生成特定的分頁(yè)sql
* @param sql
* @param page
* @return
*/
private String generatePageSql(String sql,Page page){
if(page!=null && Tools.notEmpty(dialect)){
StringBuffer pageSql = new StringBuffer();
if("mysql".equals(dialect)){
pageSql.append(sql);
pageSql.append(" limit "+page.getCurrentResult()+","+page.getShowCount());
}else if("oracle".equals(dialect)){
pageSql.append("select * from (select tmp_tb.*,ROWNUM row_id from (");
pageSql.append(sql);
//pageSql.append(") as tmp_tb where ROWNUM<=");
pageSql.append(") tmp_tb where ROWNUM<=");
pageSql.append(page.getCurrentResult()+page.getShowCount());
pageSql.append(") where row_id>");
pageSql.append(page.getCurrentResult());
}
return pageSql.toString();
}else{
return sql;
}
}
public Object plugin(Object arg0) {
// TODO Auto-generated method stub
return Plugin.wrap(arg0, this);
}
public void setProperties(Properties p) {
dialect = p.getProperty("dialect");
if (Tools.isEmpty(dialect)) {
try {
throw new PropertyException("dialect property is not found!");
} catch (PropertyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
pageSqlId = p.getProperty("pageSqlId");
if (Tools.isEmpty(pageSqlId)) {
try {
throw new PropertyException("pageSqlId property is not found!");
} catch (PropertyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
PageData類
可以放入request獲得頁(yè)面請(qǐng)求的數(shù)據(jù)窥浪，也可以當(dāng)做數(shù)據(jù)載體來(lái)使用
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
public class PageData extends HashMap implements Map{
private static final long serialVersionUID = 1L;
Map map = null;
HttpServletRequest request;
public PageData(HttpServletRequest request){
this.request = request;
Map properties = request.getParameterMap();
Map returnMap = new HashMap();
Iterator entries = properties.entrySet().iterator();
Map.Entry entry;
String name = "";
String value = "";
while (entries.hasNext()) {
entry = (Map.Entry) entries.next();
name = (String) entry.getKey();
Object valueObj = entry.getValue();
if(null == valueObj){
value = "";
}else if(valueObj instanceof String[]){
String[] values = (String[])valueObj;
for(int i=0;i<values.length;i++){
value = values[i] + ",";
}
value = value.substring(0, value.length()-1);
}else{
value = valueObj.toString();
}
returnMap.put(name, value);
}
map = returnMap;
}
public PageData() {
map = new HashMap();
}
@Override
public Object get(Object key) {
Object obj = null;
if(map.get(key) instanceof Object[]) {
Object[] arr = (Object[])map.get(key);
obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
} else {
obj = map.get(key);
}
return obj;
}
public Date getStringDate(String date){
if(DateUtil.isValidDate(date)){
return DateUtil.fomatDate(date);
}else{
return null;
}
}
public Integer getInteger(Object key){
return (Integer)key;
}
public String getString(Object key) {
return (String)get(key);
}
@SuppressWarnings("unchecked")
@Override
public Object put(Object key, Object value) {
return map.put(key, value);
}
@Override
public Object remove(Object key) {
return map.remove(key);
}
public void clear() {
map.clear();
}
public boolean containsKey(Object key) {
// TODO Auto-generated method stub
return map.containsKey(key);
}
public boolean containsValue(Object value) {
// TODO Auto-generated method stub
return map.containsValue(value);
}
public Set entrySet() {
// TODO Auto-generated method stub
return map.entrySet();
}
public boolean isEmpty() {
// TODO Auto-generated method stub
return map.isEmpty();
}
public Set keySet() {
// TODO Auto-generated method stub
return map.keySet();
}
@SuppressWarnings("unchecked")
public void putAll(Map t) {
// TODO Auto-generated method stub
map.putAll(t);
}
public int size() {
// TODO Auto-generated method stub
return map.size();
}
public Collection values() {
// TODO Auto-generated method stub
return map.values();
}
}
接下來(lái)在mybatis里面配置分頁(yè)插件
<typeAliases>
<!-- 分頁(yè) -->
<typeAlias type="com.zipx.entity.Page" alias="Page" />
</typeAliases>
<plugins>
<plugin interceptor="com.zipx.plugin.PagePlugin">
<!-- 表示數(shù)據(jù)庫(kù)為mysql-->
<property name="dialect" value="mysql" />
<!-- sql的id的匹配表達(dá)式祖很，會(huì)攔截執(zhí)行的sql語(yǔ)句-->
<property name="pageSqlId" value=".*listPage.*" />
</plugin>
</plugins>
對(duì)數(shù)據(jù)庫(kù)的操作采用sqlSessionTemplate,下面是service層方法
public List<PageData> getPrealertlistPage(Page page) throws Exception {
return (List<PageData>) dao.findForList("PrealertMapper.getPrealertlistPage", page);
}
對(duì)應(yīng)的mapper的sql為
<select id="getPrealertlistPage" parameterType="Page" resultType="pd">
SELECT p.PrealertID,
DATE_FORMAT(PrealertDate,'%Y-%m-%d') as 'PrealertDate',
p.OrderNumber,p.RefOrderNumber,p.PrealertStatus,o.orderid from prealertheader p LEFT JOIN orderheader o on p.OrderNumber=o.OrderNumber
WHERE 1=1
<if test="pd.SalesMarketID != null and pd.SalesMarketID != ''">
and p.SaledMarketID=#{pd.SalesMarketID}
</if>
<if test="pd.WarehouseID != null and pd.WarehouseID != ''">
and p.WarehouseID=#{pd.WarehouseID}
</if>
<if test="pd.StartDate != null and pd.StartDate != ''">
and DATE_FORMAT(p.PrealertDate,'%Y-%m-%d') >= #{pd.StartDate}
</if>
<if test="pd.EndDate != null and pd.EndDate != ''">
and DATE_FORMAT(p.PrealertDate,'%Y-%m-%d') <![CDATA[<=]]> #{pd.EndDate}
</if>
<if test="pd.RefOrderNumber != null and pd.RefOrderNumber != ''">
and p.RefOrderNumber LIKE CONCAT('%',#{pd.RefOrderNumber},'%')
</if>
<if test="pd.PrealertStatus == null or pd.PrealertStatus == ''">
and p.PrealertStatus != 'Deleted'
</if>
<if test="pd.PrealertStatus != null and pd.PrealertStatus != ''">
and p.PrealertStatus = #{pd.PrealertStatus}
</if>
order by PrealertDate desc
</select>
sql直接寫查詢sql語(yǔ)句即可，后面不用跟limit寒矿，因?yàn)榕渲昧朔猪?yè)插件突琳，會(huì)自動(dòng)分頁(yè)，下面看頁(yè)面js
$(function(){
var index=location.hash.indexOf("#!page=");
var page = 1;
if(index!=-1){
page=location.hash.substring(index+7);
}
toPage(page);
$('#search').click(function(){
toPage(1);
location.hash="!page=1";
});
});
function toPage(page){
var startDate=$('#StartDate').val();
var endDate=$('#EndDate').val();
var orderNumber=$('#OrderNumber').val();
var prealertStatus=$('#PrealertStatus').val();
$.ajax({
url: "<c:url value='/Order/getPrelertList'/>",
type: 'post',
data:{
page:page,
StartDate:startDate,
EndDate:endDate,
RefOrderNumber:orderNumber,
PrealertStatus:prealertStatus
},
dataType:'json',
async: false,
success: function (data) {
var $tbody =$('#t1 tbody');
$tbody.empty();
$.each(data.pageData,function(i,item){
//數(shù)據(jù)填充表格
var tr= "<tr>"+
"<td class=\"table-col-center\">"+item.PrealertDate+"</td>"+
"<td><a href=\"<%=path%>/orderList/toOrderDetail?orderID="+item.orderid+"&op=view \">"+item.OrderNumber+"</a></td>"+
"<td class=\"col-auto-hide\">"+item.RefOrderNumber+"</td>"+
"<td class=\"col-auto-hide-half\">"+item.PrealertStatus+"</td>"+
"<td class=\"table-col-center\"><span style=\"font-size: 16px;\"> ";
tr+="<a href=\"<c:url value='/Order/PrelertDetail?PrealertID="+item.PrealertID+"&action=view'/>\">"+
"<i class=\"fa fa-search\"></i>"+
"</a> ";
if(item.PrealertStatus=='Initial'){
tr+="<a href=\"<c:url value='/Order/PrelertDetail?PrealertID="+item.PrealertID+"&action=edit'/>\">"+
"<i class=\"fa fa-edit\"></i>"+
"</a>"+
" <a href=\"<c:url value='/Prealert/deletePrealertById?PrealertID="+item.PrealertID+"'/>\" onclick=\"return confirm('Are you sure to delete?');\">"+
"<i class=\"fa fa-remove\"></i>"+
"</a>"+
"</span></td>"+
"</tr>";
}else{
tr+="</span></td>"+
"</tr>";
}
$tbody.append(tr);
});
location.hash="!page="+data.pageInfo.currentPage;
//pagination 為一個(gè)div符相，存放分頁(yè)的ul
$("#pagination").html(data.pageInfo.pageStr);
}
});
}
下面為controller部分代碼
@RequestMapping("/Order/getPrelertList")
@ResponseBody
public Map<String,Object> getPrelertList(
@RequestParam(value = "page", defaultValue = "1", required = true) Integer currentPage,
HttpSession session) {
Map<String,Object> retutnData=new HashMap<String, Object>();
PageData pd = this.getPageData();//basecontroller的方法
SystemUser s = (SystemUser) session.getAttribute(Const.SESSION_USER);
try {
String id = systemUserService.getWareHouseIdByUserId(s.getsystemUserID());
pd.put("WarehouseID", id);
Page pageInfo = new Page();
pageInfo.setCurrentPage(currentPage);
pageInfo.setPd(pd);
List<PageData> pds = prealertService.getPrealertlistPage(pageInfo);
Page.PageStr(pageInfo);
retutnData.put("pageData", pds);//設(shè)置數(shù)據(jù)
retutnData.put("pageInfo",pageInfo);//設(shè)置分頁(yè)信息
} catch (Exception e) {
logger.error(e.toString());
return null;
}
return retutnData;
}
basecontroller部分代碼
/**
* 得到request對(duì)象
*/
public HttpServletRequest getRequest() {
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
return request;
}
/**
* 得到PageData
*/
public PageData getPageData(){
return new PageData(this.getRequest());
}
到此完成ajax的分頁(yè)
