JavaWeb项目开发案例精粹-第4章博客网站系统-005action层

1.

package com.sanqing.action;

import java.util.Date;
import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.Article;
import com.sanqing.service.ArticleService;

public class AddArticle extends ActionSupport {
    private String title;
    private String content;
    private ArticleService articleService;
    
    public ArticleService getArticleService() {
        return articleService;
    }
    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }
    public String getTitle() {
        return title;
    }
    public void setTitle(String title) {
        this.title = title;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
    public String execute() throws Exception {
        Map session = ActionContext.getContext().getSession();
        String username = (String) session.get("username");
        
        //封装一个PO类的对象
        Article article = new Article();
        article.setTitle(title);
        article.setContent(content);
        article.setUsername(username);
        article.setDate(new Date());
        article.setHasread(0);
        articleService.addArticle(article);
        return this.SUCCESS;
    }
}

2.

package com.sanqing.action;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.Critique;
import com.sanqing.service.CritiqueService;

public class AddCritique extends ActionSupport {
    private CritiqueService critiqueService;
    private int id;
    private String content;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public CritiqueService getCritiqueService() {
        return critiqueService;
    }

    public void setCritiqueService(CritiqueService critiqueService) {
        this.critiqueService = critiqueService;
    }

    public String execute() throws Exception {
        Map session = ActionContext.getContext().getSession();
        String username = (String) session.get("username");
        Critique critique = new Critique();
        if(username == null || "".equals(username)) {
            critique.setUsername("匿名");
        } else {
            critique.setUsername(username);
        }
        critique.setAId(id);
        critique.setContent(content);

        // 保存评论
        this.critiqueService.addCritique(critique);

        return this.SUCCESS;
    }

}

3.EditBlogInfo-validation.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
          "-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
          "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
    <validator type="requiredstring">
        <param name="fieldName">blogtitle</param>
        <param name="trim">true</param>
        <message>必须输入博客标题</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">blogtitle</param>
        <param name="expression"><![CDATA[([u4e00-u9fa5,a-z,A-Z,0-9]{4,20})]]></param>
        <message>博客标题长度必须为4至20之间</message>
    </validator>

    <validator type="requiredstring">
        <param name="fieldName">idiograph</param>
        <param name="trim">true</param>
        <message>必须输入个性签名</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">idiograph</param>
        <param name="expression"><![CDATA[([u4e00-u9fa5,a-z,A-Z,0-9]{4,20})]]></param>
        <message>个性签名长度必须为4至20之间</message>
    </validator>
</validators>

4.

package com.sanqing.action;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.BlogInfo;
import com.sanqing.service.BlogInfoService;

public class EditBlogInfo extends ActionSupport {
    private String blogtitle;
    private String idiograph;
    private BlogInfoService blogInfoService;

    public BlogInfoService getBlogInfoService() {
        return blogInfoService;
    }

    public void setBlogInfoService(BlogInfoService blogInfoService) {
        this.blogInfoService = blogInfoService;
    }

    public String getBlogtitle() {
        return blogtitle;
    }

    public void setBlogtitle(String blogtitle) {
        this.blogtitle = blogtitle;
    }

    public String getIdiograph() {
        return idiograph;
    }

    public void setIdiograph(String idiograph) {
        this.idiograph = idiograph;
    }

    public String execute() throws Exception {
//        //获得request
//        HttpServletRequest request = ServletActionContext.getRequest();
//        //获得session
//        HttpSession session =request.getSession();
//        //获得username
//        String username = (String) session.getAttribute("username");
        
        Map session = ActionContext.getContext().getSession();
        String username = (String) session.get("username");
        
        BlogInfo blogInfo = new BlogInfo();
        //设置用户名
        blogInfo.setUsername(username);
        //设置博客标题
        blogInfo.setBlogtitle(blogtitle);
        //设置个性签名
        blogInfo.setIdiograph(idiograph);
        //调用业务逻辑组件来完成设置
        blogInfoService.setBlogInfo(blogInfo);
        
        return this.SUCCESS;
    }

}

5.

package com.sanqing.action;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.BlogInfo;
import com.sanqing.service.BlogInfoService;

public class GetBlogInfo extends ActionSupport {

    private BlogInfoService blogInfoService;

    public BlogInfoService getBlogInfoService() {
        return blogInfoService;
    }

    public void setBlogInfoService(BlogInfoService blogInfoService) {
        this.blogInfoService = blogInfoService;
    }
    
    public String execute() throws Exception {
        //获得usrname
        Map session = ActionContext.getContext().getSession();
        String username = (String) session.get("username");
        
        //通过业务逻辑组件来查询
        BlogInfo bloginfo  = blogInfoService.getBlogInfo(username);
        
        if(bloginfo != null) {
            session.put("blogtitle", bloginfo.getBlogtitle());
            session.put("idiograph", bloginfo.getIdiograph());
        }
        return this.SUCCESS;
    }
}

6.

package com.sanqing.action;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.User;
import com.sanqing.service.UserService;

public class Login extends ActionSupport {
    private String username;
    private String password;
    private UserService userService;

    public UserService getUserService() {
        return userService;
    }

    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String execute() throws Exception {
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        //获得request
        HttpServletRequest request = ServletActionContext.getRequest();
        if(userService.loginUser(user)) {
            request.setAttribute("url", "user/getBlogInfo.action");
            request.setAttribute("info", "登陆成功");
            //将username保存到session范围中
//            HttpSession session =request.getSession();
            Map session = ActionContext.getContext().getSession();
//            session.setAttribute("username", username);    
            session.put("username", username);
            return SUCCESS;
        } else {
            request.setAttribute("url", "login.jsp");
            request.setAttribute("info", "登陆失败");
            return ERROR;
        }
    }

}

7.

package com.sanqing.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import java.util.UUID;

import org.apache.commons.io.FilenameUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class PhotoUpload  extends ActionSupport{
    private File myFile;
    private String myFileContentType;
    private String myFileFileName;

    public File getMyFile() {
        return myFile;
    }

    public void setMyFile(File myFile) {
        this.myFile = myFile;
    }

    public String getMyFileContentType() {
        return myFileContentType;
    }

    public void setMyFileContentType(String myFileContentType) {
        this.myFileContentType = myFileContentType;
    }

    public String getMyFileFileName() {
        return myFileFileName;
    }

    public void setMyFileFileName(String myFileFileName) {
        this.myFileFileName = myFileFileName;
    }

    public String execute() throws Exception {
        //获得username
        Map session = ServletActionContext.getContext().getSession();
        String username = (String) session.get("username");
        
        //创建一个输入流
        InputStream is = new FileInputStream(myFile);
        //设置文件保存目录
        String photoPath = 
            ServletActionContext.getServletContext().getRealPath("/user/photo/" + username);
        File filePhotoPath = new File(photoPath);
        if(!filePhotoPath.isDirectory()) {
            filePhotoPath.mkdir();
        }
        
        //解决中文文件名问题
        String extension = FilenameUtils.getExtension(this.getMyFileFileName());
        String filename = UUID.randomUUID().toString() + "."+ extension;
        
        //设置目标文件
        File tofile = new File(photoPath,filename);
        //使用输出流来包装目标文件
        OutputStream os = new FileOutputStream(tofile);
        byte[] buffer = new byte[1024];
        int length = 0;
        while((length = is.read(buffer)) > 0) {
            os.write(buffer, 0, length);
        }
        //关闭输入流
        is.close();
        //关闭输出流
        os.close();
        
        return this.SUCCESS;
    }

    
}

8.Register-validation.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
          "-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
          "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
    <validator type="requiredstring">
        <param name="fieldName">username</param>
        <param name="trim">true</param>
        <message>必须输入用户名</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">username</param>
        <param name="expression"><![CDATA[(w{6,20})]]></param>
        <message>用户名长度必须为6至20之间</message>
    </validator>

    <validator type="requiredstring">
        <param name="fieldName">password</param>
        <param name="trim">true</param>
        <message>必须输入密码</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">password</param>
        <param name="expression"><![CDATA[(w{6,20})]]></param>
        <message>密码长度必须为6至20之间</message>
    </validator>

    <validator type="requiredstring">
        <param name="fieldName">repassword</param>
        <param name="trim">true</param>
        <message>必须输入确认密码</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">repassword</param>
        <param name="expression"><![CDATA[(w{6,20})]]></param>
        <message>确认密码长度必须为6至20之间</message>
    </validator>

    <validator type="fieldexpression">
        <param name="fieldName">repassword</param>
        <param name="expression"><![CDATA[(repassword==password)]]></param>
        <message>密码和确认密码必须一致</message>
    </validator>

    <validator type="requiredstring">
        <param name="fieldName">nickname</param>
        <param name="trim">true</param>
        <message>必须输入昵称</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">nickname</param>
        <param name="expression"><![CDATA[([u4e00-u9fa5]{2,20})]]></param>
        <message>昵称长度必须为2至20之间</message>
    </validator>
    
        <validator type="requiredstring">
        <param name="fieldName">answer</param>
        <param name="trim">true</param>
        <message>必须输入密码保护答案</message>
    </validator>

    <validator type="regex">
        <param name="fieldName">answer</param>
        <param name="expression"><![CDATA[([u4e00-u9fa5]{5,50})]]></param>
        <message>密码保护答案长度必须为5至50之间</message>
    </validator>
</validators>

9.

package com.sanqing.action;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.po.User;
import com.sanqing.service.UserService;

public class Register extends ActionSupport{
    private String username;
    private String password;
    private String repassword;
    private String nickname;
    private String question;
    private String answer;
    private UserService userService;
    
    public UserService getUserService() {
        return userService;
    }
    public void setUserService(UserService userService) {
        this.userService = userService;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getRepassword() {
        return repassword;
    }
    public void setRepassword(String repassword) {
        this.repassword = repassword;
    }
    public String getNickname() {
        return nickname;
    }
    public void setNickname(String nickname) {
        this.nickname = nickname;
    }
    public String getQuestion() {
        return question;
    }
    public void setQuestion(String question) {
        this.question = question;
    }
    public String getAnswer() {
        return answer;
    }
    public void setAnswer(String answer) {
        this.answer = answer;
    }
    
    
    public String execute() throws Exception {
        //封装一个user对象
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        user.setNickname(nickname);
        user.setQuestion(question);
        user.setAnswer(answer);
        //获得request
        HttpServletRequest request = ServletActionContext.getRequest();
        if(userService.registerUser(user)) {
            request.setAttribute("url", "login.jsp");
            request.setAttribute("info", "注册成功");
            return SUCCESS;
        }else {
            request.setAttribute("url", "register.jsp");
            request.setAttribute("info", "注册失败");
            return ERROR;
        }
    }

}

10.

package com.sanqing.action;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.fenye.Page;
import com.sanqing.fenye.Result;
import com.sanqing.po.Article;
import com.sanqing.service.ArticleService;

public class ShowAllArticle extends ActionSupport{
    private ArticleService articleService;
    private int currentPage;

    public int getCurrentPage() {
        return currentPage;
    }
    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }
    public ArticleService getArticleService() {
        return articleService;
    }
    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }
    
    public String execute() throws Exception {
        //通过调用业务逻辑组件来完成查询
        Page page = new Page();
        page.setCurrentPage(this.getCurrentPage());
        page.setEveryPage(10);
        
        Result result = articleService.showArticleByPage(page);
        page = result.getPage();
        List<Article> all = result.getList();
        
        List critiqueCounts = new ArrayList();
        for(Article article : all) {
            critiqueCounts.add(articleService.getCritiqueCount(article.getId()));
        }
        
        //把查询到的结果保存在一个范围，request
        HttpServletRequest request = ServletActionContext.getRequest();
        request.setAttribute("all", all);
        request.setAttribute("page", page);
        request.setAttribute("critiqueCounts",critiqueCounts);
        return this.SUCCESS;
    }
    
}

11.

package com.sanqing.action;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.fenye.Page;
import com.sanqing.fenye.Result;
import com.sanqing.po.Article;
import com.sanqing.po.BlogInfo;
import com.sanqing.service.ArticleService;
import com.sanqing.service.BlogInfoService;
import com.sanqing.service.CritiqueService;
import com.sanqing.service.DianjiliangService;

public class ShowArticle extends ActionSupport {
    // 业务逻辑组件属性
    private ArticleService articleService;
    // id属性
    private int id;
    // 点击量的业务逻辑组件
    private DianjiliangService dianjiliangService;
    // 评论的业务逻辑组件
    private CritiqueService critiqueService;
    //设置当前页
    private int currentPage;
    
    //username
    private String username;
    
    private BlogInfoService blogInfoService;

    public BlogInfoService getBlogInfoService() {
        return blogInfoService;
    }

    public void setBlogInfoService(BlogInfoService blogInfoService) {
        this.blogInfoService = blogInfoService;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public int getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    public CritiqueService getCritiqueService() {
        return critiqueService;
    }

    public void setCritiqueService(CritiqueService critiqueService) {
        this.critiqueService = critiqueService;
    }

    public DianjiliangService getDianjiliangService() {
        return dianjiliangService;
    }

    public void setDianjiliangService(DianjiliangService dianjiliangService) {
        this.dianjiliangService = dianjiliangService;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public ArticleService getArticleService() {
        return articleService;
    }

    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }

    public String execute() throws Exception {
        // 将文章设置到request范围
        HttpServletRequest request = ServletActionContext.getRequest();
        // 按ID查询文章
        Article article = articleService.showArticle(id);
        // 获得用户IP
        String IP = request.getRemoteAddr();
        // 获得当前时间
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String stime = sdf.format(new Date());
        Date time = sdf.parse(stime);

        if (!dianjiliangService.isVistor(id, IP, time)) {
            // 点击量增加
            article.setHasread(article.getHasread() + 1);
        }
        // 将更新的Article保存到数据表中
        articleService.addArticle(article);
        
        
        //显示评论
        Page page = new Page();
        page.setCurrentPage(this.getCurrentPage());
        page.setEveryPage(5);
        
        Result result = critiqueService.showCritiqueByPage(id, page);
        
        request.setAttribute("page", result.getPage());
        request.setAttribute("allCri", result.getList());
        request.setAttribute("article", article);
        
        //取得个性化设置
        //通过业务逻辑组件来查询
        if(username != null || !"".equals(username)) {
            Map session = ActionContext.getContext().getSession();
            BlogInfo bloginfo  = blogInfoService.getBlogInfo(username);
            if(bloginfo != null) {
                session.put("blogtitle", bloginfo.getBlogtitle());
                session.put("idiograph", bloginfo.getIdiograph());
            }
        }
        return this.SUCCESS;
    }

}

12.

package com.sanqing.action;

import java.io.File;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class ShowPhoto  extends ActionSupport{

    public String execute() throws Exception {
        //获得username
        Map session = ServletActionContext.getContext().getSession();
        String username = (String) session.get("username");
        
        //设置文件目录
        String photoPath = 
            ServletActionContext.getServletContext().getRealPath("/user/photo/" + username);
        //使用File封装
        File fphotoPath = new File(photoPath);
        //获得相册目录的所有图片文件
        String[] photoList = fphotoPath.list();
        //将图片列表设置到request范围
        HttpServletRequest request = ServletActionContext.getRequest();
        request.setAttribute("photoList", photoList);
        return super.execute();
    }

}

13

package com.sanqing.action;

import java.util.List;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.fenye.Page;
import com.sanqing.fenye.Result;
import com.sanqing.po.Article;
import com.sanqing.rss.CreateRss;
import com.sanqing.service.ArticleService;

public class ShowRSS extends ActionSupport {
    private ArticleService articleService;
    public ArticleService getArticleService() {
        return articleService;
    }
    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }
    public String execute() throws Exception {
        Page page = new Page();        //分页信息
        page.setCurrentPage(0);        //设置当前页为第一页
        page.setEveryPage(10);        //每页显示10条记录
        Result result = articleService.
            showArticleByPage(page);//通过调用业务逻辑组件来完成查询
        page = result.getPage();
        List<Article> all = result.getList();//获得文章结果集
        String filePath = ServletActionContext.
            getServletContext().getRealPath("/rss.xml");//设置订阅文件地址
        CreateRss.publishRss(all, filePath);//写入订阅文件
        return this.SUCCESS;
    }
}

14.

package com.sanqing.action;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.sanqing.fenye.Page;
import com.sanqing.fenye.Result;
import com.sanqing.po.Article;
import com.sanqing.service.ArticleService;

public class ShowUserAllArticle extends ActionSupport{
    private ArticleService articleService;
    private int currentPage;
    private String username;

    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public int getCurrentPage() {
        return currentPage;
    }
    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }
    public ArticleService getArticleService() {
        return articleService;
    }
    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }
    
    public String execute() throws Exception {
        if(username == null || "".equals(username)) {
            //首先要获得session
            Map session = ActionContext.getContext().getSession();
            //获得username
            username = (String) session.get("username");
        }
        
        //通过调用业务逻辑组件来完成查询
        Page page = new Page();
        page.setCurrentPage(this.getCurrentPage());
        page.setEveryPage(5);
        
        Result result = articleService.showUserArticleByPage(username, page);
        page = result.getPage();
        List<Article> all = result.getList();
        List critiqueCounts = new ArrayList();
        
        for(Article article : all) {
            critiqueCounts.add(articleService.getCritiqueCount(article.getId()));
        }
        
        //把查询到的结果保存在一个范围，request
        HttpServletRequest request = ServletActionContext.getRequest();
        request.setAttribute("all", all);
        request.setAttribute("page", page);
        request.setAttribute("critiqueCounts",critiqueCounts);
        return this.SUCCESS;
    }
    
}