修改分页信息

src/main/java/com/nis/domain/Page.java

@@ -4,7 +4,7 @@
 package com.nis.domain;
 
 import java.util.ArrayList;
-import java.util.HashMap;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.regex.Pattern;
@@ -13,16 +13,11 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.apache.commons.lang3.StringUtils;
-import org.apache.ibatis.mapping.ResultMap;
-import org.apache.ibatis.mapping.ResultMapping;
-import org.apache.ibatis.session.SqlSessionFactory;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.nis.util.Configurations;
-import com.nis.util.Constants;
 import com.nis.util.CookieUtil;
 import com.nis.util.StringUtil;
-import com.nis.web.service.SpringContextHolder;
 
 /**
  * 分页类
@@ -52,7 +47,7 @@ public class Page<T> {
 	
 	private String orderBy = ""; // 标准查询有效， 实例： updatedate desc, name asc
 	
-	private String fields ="";//制定资源的字段
+	private String fields;//制定资源的字段
 	
 	private String where;
 
@@ -63,10 +58,9 @@ public class Page<T> {
 	private String message = ""; // 设置提示消息，显示在“共n条”之后
 
 	public Page() {
-		this.pageSize = pageSize;
+		this.pageSize = -1;
 	}
 	
-	
 	/**
 	 * 构造方法
 	 * @param request 传递 repage 参数，来记住页码
@@ -74,27 +68,11 @@ public class Page<T> {
 	 */
 	public Page(HttpServletRequest request, HttpServletResponse response){
 		
-		this(request, response,Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
+		this(request, response, Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
-		
-	}
-	/**
-	 * 构造方法
-	 * @param request 传递 repage 参数，来记住页码
-	 * @param response 用于设置 Cookie，记住页码
-	 * 
-	 */
-	public Page(HttpServletRequest request, HttpServletResponse response,Class clazz){
-		
-		this(request, response,clazz.getSimpleName(),Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
-		
-	}
-	public Page(HttpServletRequest request, HttpServletResponse response,int defaultPageSize){
-		
-		this(request, response,"",Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
 		
 	}
 
-	public Page(HttpServletRequest request, HttpServletResponse response,String className, int defaultPageSize){
+	public Page(HttpServletRequest request, HttpServletResponse response, int defaultPageSize){
 		try {
 			// 设置页码参数（传递repage参数，来记住页码）
 			String no = request.getParameter("pageNo");
@@ -111,7 +89,13 @@ public class Page<T> {
 			}
 			
 			// 设置页面大小参数（传递repage参数，来记住页码大小）
-			String size = request.getParameter("pageSize");
+			String size = "";
+			if(defaultPageSize==-1){
+				size = "-1";
+			}else{
+				size = request.getParameter("pageSize");
+				
+			}
 			if (StringUtils.isNotBlank(size)) {
 				
 				if (StringUtils.isNumeric(size) || size.equals("-1")){
@@ -126,24 +110,20 @@ public class Page<T> {
 			} else {
 				this.pageSize = defaultPageSize;
 			}
-			//超出每页最大显示条数，取限制的最大条数
-			if(this.pageSize > Constants.MAX_PAGE_SIZE){
-				this.pageSize = Constants.MAX_PAGE_SIZE;
-			}
 			
 			String fields = request.getParameter("fields");
 			if (StringUtils.isNotBlank(fields)){
-				fields=getFiledsSql(className, fields);
 				this.setFields(fields);
 			}
 			
 			// 设置排序参数
 			String orderBy = request.getParameter("orderBy");
 			if (StringUtils.isNotBlank(orderBy)){
-				orderBy=getOrderBySql(className, orderBy);
 				this.setOrderBy(orderBy);
 			}
-			this.count=Integer.valueOf(Configurations.getIntProperty("page.count", -1));
+			
+			this.setWhere(getWhere(request));
+			
 			
 		} catch (Exception e) {
 			e.printStackTrace();
@@ -334,8 +314,8 @@ public class Page<T> {
 		sb.append("<li class=\"disabled controls\"><a href=\"javascript:\">当前 ");
 		sb.append("<input type=\"text\" value=\""+pageNo+"\" onkeypress=\"var e=window.event||this;var c=e.keyCode||e.which;if(c==13)");
 		sb.append(funcName+"(this.value,"+pageSize+",'"+funcParam+"');\" onclick=\"this.select();\"/> / ");
-		sb.append("<input type=\"text\" value=\""+pageSize+"\" onkeypress=\"var e=window.event||this;var c=e.keyCode||e.which;if(c==13)");
+		sb.append("<input type=\"text\" value=\""+last+"\" onkeypress=\"var e=window.event||this;var c=e.keyCode||e.which;if(c==13)");
-		sb.append(funcName+"("+pageNo+",this.value,'"+funcParam+"');\" onclick=\"this.select();\"/> 条，");
+		sb.append(funcName+"("+pageNo+",this.value,'"+funcParam+"');\" onclick=\"this.select();\"/> 页，");
 		sb.append("共 " + count + " 条"+(message!=null?message:"")+"</a></li>\n");
 
 		sb.insert(0,"<ul>\n").append("</ul>\n");
@@ -643,138 +623,37 @@ public class Page<T> {
 	public int getMaxResults(){
 		return getPageSize();
 	}
-	/**
-	 * @Title: getFiledsSql
-	 * @Description: 将fields的属性名称替换为字段名称
-	 * @param @param mapName
-	 * @param @param fileds
-	 * @param @return
-	 * @param @throws Exception
-	 * @return Map 返回类型
-	 * @author （DDM）
-	 * @version V1.0
-	 */
-	@JsonIgnore
-	public String getFiledsSql(String mapName,String fileds) throws Exception{
-			String[] fieldsColoumn=null;
-			String orderByStr="";
-			//所有字段名
-			List<String> columnList=new ArrayList<String>();
-			//所有属性名
-			List<String> propertyList=new ArrayList<String>();
-			//属性名称为key，字段名称为value
-			Map<String, String> columnMap=new HashMap<String, String>();
-			
-			if(!StringUtil.isBlank(fileds)){
-				//解析Fileds的字段/属性名称
-				fieldsColoumn=fileds.split(",");
-				
-				//从resultMap中获取字段名称和属性名称
-				if(fieldsColoumn != null){
-					SqlSessionFactory sqlSessionFactory=SpringContextHolder.getBean(SqlSessionFactory.class);
-					ResultMap map= sqlSessionFactory.getConfiguration().getResultMap(mapName+"Map");
-					List<ResultMapping> mapping= map.getResultMappings();
-					for(ResultMapping mapp:mapping){
-						columnList.add(mapp.getColumn().toLowerCase());
-						propertyList.add(mapp.getProperty());
-						columnMap.put(mapp.getProperty(), mapp.getColumn());
-					}
-				}
-				if(fieldsColoumn != null){
-					fileds="";
-					for (String column : fieldsColoumn) {
-						if(!StringUtil.isBlank(column)){
-							column=column.trim();
-							if(columnList.contains(column.toLowerCase())){
-								fileds+=","+column;
-							}else if(propertyList.contains(column)){
-								fileds+=","+columnMap.get(column).toString();
-							}
-						}
-					}
-					if(!StringUtil.isBlank(fileds)){
-						fileds=fileds.substring(1);
-					}
-					
-				}
-				
-			}
-		return fileds;
-	}
-	/**
-	 * @Title: getOrderBySql
-	 * @Description: 将orderBy的属性名称替换为字段名称
-	 * @param @param mapName
-	 * @param @param orderBy
-	 * @param @return
-	 * @param @throws Exception
-	 * @return Map 返回类型
-	 * @author （DDM）
-	 * @version V1.0
-	 */
-	@JsonIgnore
-	public static String getOrderBySql(String mapName,String orderBy) throws Exception{
-		String[] orderByColoumn=null;
-		//所有字段名
-		List<String> columnList=new ArrayList<String>();
-		//所有属性名
-		List<String> propertyList=new ArrayList<String>();
-		Map<String, String> columnMap=new HashMap<String, String>();
-		
-		if(!StringUtil.isBlank(orderBy)){
-			//解析orderBy的字段/属性名称
-			orderByColoumn=orderBy.split(",");
-			//从resultMap中获取字段名称和属性名称
-			if(orderByColoumn != null){
-				SqlSessionFactory sqlSessionFactory=SpringContextHolder.getBean(SqlSessionFactory.class);
-				ResultMap map= sqlSessionFactory.getConfiguration().getResultMap(mapName+"Map");
-				List<ResultMapping> mapping= map.getResultMappings();
-				for(ResultMapping mapp:mapping){
-					columnList.add(mapp.getColumn().toLowerCase());
-					propertyList.add(mapp.getProperty());
-					columnMap.put(mapp.getProperty(), mapp.getColumn());
-				}
-			}
-			if(orderByColoumn != null){
-				orderBy="";
-				for (String column : orderByColoumn) {
-					if(!StringUtil.isBlank(column)){
-						if(columnList.contains(replaceOrderBy(column))){
-							orderBy+=","+column;
-						}else if(propertyList.contains(replaceOrderBy(column))){
-							//如果是实体类名字则获取对应数据库名字+排序方式
-							orderBy+=","+columnMap.get(replaceOrderBy(column)).toString()
-									+column.replace(replaceOrderBy(column), "");
-						}
-					}
-				}
-				if(!StringUtil.isBlank(orderBy)){
-					orderBy=orderBy.substring(1);
-				}
-			}
-			
-		}
-		return orderBy;
-	}
-	/**
-	 * @Title: replaceOrderBy
-	 * @Description: 去掉orderBy中的desc和asc
-	 * @param @param str
-	 * @param @return
-	 * @return Map 返回类型
-	 * @author （DDM）
-	 * @version V1.0
-	 */
-	public static String replaceOrderBy(String str){
-		if(!StringUtil.isBlank(str)){
-			str=str.trim();
-			str=str.replace(" asc","");
-			str=str.replace(" ASC","");
-			str=str.replace(" DESC","");
-			str=str.replace(" desc","");
-			str=str.trim();
-		}
-		return str;
-	}
 
+//	/**
+//	 * 获取 Spring data JPA 分页对象
+//	 */
+//	public Pageable getSpringPage(){
+//		List<Order> orders = new ArrayList<Order>();
+//		if (orderBy!=null){
+//			for (String order : StringUtils.split(orderBy, ",")){
+//				String[] o = StringUtils.split(order, " ");
+//				if (o.length==1){
+//					orders.add(new Order(Direction.ASC, o[0]));
+//				}else if (o.length==2){
+//					if ("DESC".equals(o[1].toUpperCase())){
+//						orders.add(new Order(Direction.DESC, o[0]));
+//					}else{
+//						orders.add(new Order(Direction.ASC, o[0]));
+//					}
+//				}
+//			}
+//		}
+//		return new PageRequest(this.pageNo - 1, this.pageSize, new Sort(orders));
+//	}
+//	
+//	/**
+//	 * 设置 Spring data JPA 分页对象，转换为本系统分页对象
+//	 */
+//	public void setSpringPage(org.springframework.data.domain.Page<T> page){
+//		this.pageNo = page.getNumber();
+//		this.pageSize = page.getSize();
+//		this.count = page.getTotalElements();
+//		this.list = page.getContent();
+//	}
+	
 }