/** Copyright 2008-2013 the original author or authors.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package org.springframework.data.domain;import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;/*** Basic {@code Page} implementation.* * @param <T> the type of which the page consists.* @author Oliver Gierke*/
public class PageImpl<T> implements Page<T>, Serializable {private static final long serialVersionUID = 867755909294344406L;private final List<T> content = new ArrayList<T>();private final Pageable pageable;private final long total;/*** Constructor of {@code PageImpl}.* * @param content the content of this page, must not be {@literal null}.* @param pageable the paging information, can be {@literal null}.* @param total the total amount of items available*/public PageImpl(List<T> content, Pageable pageable, long total) {if (null == content) {throw new IllegalArgumentException("Content must not be null!");}this.content.addAll(content);this.total = total;this.pageable = pageable;}/*** Creates a new {@link PageImpl} with the given content. This will result in the created {@link Page} being identical* to the entire {@link List}.* * @param content must not be {@literal null}.*/public PageImpl(List<T> content) {this(content, null, null == content ? 0 : content.size());}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getNumber()*/public int getNumber() {return pageable == null ? 0 : pageable.getPageNumber();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getSize()*/public int getSize() {return pageable == null ? 0 : pageable.getPageSize();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getTotalPages()*/public int getTotalPages() {return getSize() == 0 ? 1 : (int) Math.ceil((double) total / (double) getSize());}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getNumberOfElements()*/public int getNumberOfElements() {return content.size();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getTotalElements()*/public long getTotalElements() {return total;}/** (non-Javadoc)* @see org.springframework.data.domain.Page#hasPreviousPage()*/public boolean hasPreviousPage() {return getNumber() > 0;}/** (non-Javadoc)* @see org.springframework.data.domain.Page#isFirstPage()*/public boolean isFirstPage() {return !hasPreviousPage();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#hasNextPage()*/public boolean hasNextPage() {return getNumber() + 1 < getTotalPages();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#isLastPage()*/public boolean isLastPage() {return !hasNextPage();}/* * (non-Javadoc)* @see org.springframework.data.domain.Page#nextPageable()*/public Pageable nextPageable() {return hasNextPage() ? pageable.next() : null;}/* * (non-Javadoc)* @see org.springframework.data.domain.Page#previousOrFirstPageable()*/public Pageable previousPageable() {if (hasPreviousPage()) {return pageable.previousOrFirst();}return null;}/** (non-Javadoc)* @see org.springframework.data.domain.Page#iterator()*/public Iterator<T> iterator() {return content.iterator();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getContent()*/public List<T> getContent() {return Collections.unmodifiableList(content);}/** (non-Javadoc)* @see org.springframework.data.domain.Page#hasContent()*/public boolean hasContent() {return !content.isEmpty();}/** (non-Javadoc)* @see org.springframework.data.domain.Page#getSort()*/public Sort getSort() {return pageable == null ? null : pageable.getSort();}/** (non-Javadoc)* @see java.lang.Object#toString()*/@Overridepublic String toString() {String contentType = "UNKNOWN";if (content.size() > 0) {contentType = content.get(0).getClass().getName();}return String.format("Page %s of %d containing %s instances", getNumber(), getTotalPages(), contentType);}/** (non-Javadoc)* @see java.lang.Object#equals(java.lang.Object)*/@Overridepublic boolean equals(Object obj) {if (this == obj) {return true;}if (!(obj instanceof PageImpl<?>)) {return false;}PageImpl<?> that = (PageImpl<?>) obj;boolean totalEqual = this.total == that.total;boolean contentEqual = this.content.equals(that.content);boolean pageableEqual = this.pageable == null ? that.pageable == null : this.pageable.equals(that.pageable);return totalEqual && contentEqual && pageableEqual;}/** (non-Javadoc)* @see java.lang.Object#hashCode()*/@Overridepublic int hashCode() {int result = 17;result = 31 * result + (int) (total ^ total >>> 32);result = 31 * result + (pageable == null ? 0 : pageable.hashCode());result = 31 * result + content.hashCode();return result;}
}

省略================String pageindex = "" + (searchable.getPage().getPageNumber() * searchable.getPage().getPageSize() + 1);
String Spagesum = "" + searchable.getPage().getPageSize();com.pcitc.modules.fos.appstream.wsclient.qry.ResponseBody responseBody = appStreamRepository.appStreamQry(user, LSUtil.getLsNum(), streamEntity, pageinsex, pagesum);
// 视图部分
model.addAttribute("page", new PageImpl<Qrylist>(responseBody.getQrylist(), searchable.getPage(),Long.parseLong(responseBody.getSumcount())));setCommonData(model);
return viewName("moview");省略======================