blog完整版

dao

package com.zr.dao;

import com.zr.po.Blog;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Query;

import java.util.List;

public interface BlogDao extends JpaRepository<Blog,Long> , JpaSpecificationExecutor<Blog> {

    @Query("SELECT b FROM Blog b where b.recommend=true")
    List<Blog> findTop(Pageable pageable);

    @Query("SELECT b FROM Blog b WHERE b.title LIKE ?1 or b.content LIKE ?1")
    Page<Blog> findByQuery(String s, Pageable pageable);

    @Query("select function('date_format',b.updateTime,'%Y') as year from Blog b group by year order by year desc")
    List<String> findGroupYear();

    @Query("select b from Blog b where function('date_format',b.updateTime,'%Y') = ?1")
    List<Blog> findByYear(String y);
}

package com.zr.dao;

import com.zr.po.Comment;
import org.springframework.data.domain.Sort;
import org.springframework.data.jpa.repository.JpaRepository;

import java.util.List;

public interface CommentDao extends JpaRepository<Comment,Long> {
    List<Comment> findByBlogIdAndParentCommentNull(Long blogId, Sort sort);
}

package com.zr.dao;

import com.zr.po.Tag;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;

import java.util.List;

public interface TagDao extends JpaRepository<Tag,Long> {
    @Query("SELECT t FROM Tag t")
    List<Tag> findTop(Pageable pageable);
}

package com.zr.dao;

import com.zr.po.Type;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;

import java.util.List;

public interface TypeDao extends JpaRepository<Type,Long> {

    @Query("SELECT t FROM Type t")
    List<Type> findTop(Pageable pageable);
}

package com.zr.dao;

import com.zr.po.User;
import org.springframework.data.jpa.repository.JpaRepository;

public interface UserDao extends JpaRepository<User,Long> {
    User findByUsernameAndPassword(String username, String password);
}

interceptor

package com.zr.interceptor;

import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

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

public class Longinterceptor extends HandlerInterceptorAdapter {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        if (request.getSession().getAttribute("user")==null){
            response.sendRedirect("/admin");
            return false;
        }
        return true;
    }
}

package com.zr.interceptor;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new Longinterceptor()).addPathPatterns("/admin/**").excludePathPatterns("/admin/login").excludePathPatterns("/admin");
    }
}

po

package com.zr.po;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * Created by limi on 2017/10/14.
 */
@Entity
@Table(name = "t_blog")
public class Blog {

    @Id
    @GeneratedValue
    private Long id;

    private String title;

    @Basic(fetch = FetchType.LAZY)
    @Lob
    private String content;
    private String firstPicture;
    private String flag;
    private Integer views;
    private boolean appreciation;
    private boolean shareStatement;
    private boolean commentabled;
    private boolean published;
    private boolean recommend;
    @Temporal(TemporalType.TIMESTAMP)
    private Date createTime;
    @Temporal(TemporalType.TIMESTAMP)
    private Date updateTime;

    @ManyToOne
    private Type type;

    @ManyToMany(cascade = {CascadeType.PERSIST})
    private List<Tag> tags = new ArrayList<>();


    @ManyToOne
    private User user;

    @OneToMany(mappedBy = "blog")
    private List<Comment> comments = new ArrayList<>();

    @Transient
    private String tagIds;

    private String description;

    public Blog() {
    }

    public Long getId() {
        return id;
    }

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

    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 getFirstPicture() {
        return firstPicture;
    }

    public void setFirstPicture(String firstPicture) {
        this.firstPicture = firstPicture;
    }

    public String getFlag() {
        return flag;
    }

    public void setFlag(String flag) {
        this.flag = flag;
    }

    public Integer getViews() {
        return views;
    }

    public void setViews(Integer views) {
        this.views = views;
    }

    public boolean isAppreciation() {
        return appreciation;
    }

    public void setAppreciation(boolean appreciation) {
        this.appreciation = appreciation;
    }

    public boolean isShareStatement() {
        return shareStatement;
    }

    public void setShareStatement(boolean shareStatement) {
        this.shareStatement = shareStatement;
    }

    public boolean isCommentabled() {
        return commentabled;
    }

    public void setCommentabled(boolean commentabled) {
        this.commentabled = commentabled;
    }

    public boolean isPublished() {
        return published;
    }

    public void setPublished(boolean published) {
        this.published = published;
    }

    public boolean isRecommend() {
        return recommend;
    }

    public void setRecommend(boolean recommend) {
        this.recommend = recommend;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }

    public Type getType() {
        return type;
    }

    public void setType(Type type) {
        this.type = type;
    }

    public List<Tag> getTags() {
        return tags;
    }

    public void setTags(List<Tag> tags) {
        this.tags = tags;
    }


    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }


    public List<Comment> getComments() {
        return comments;
    }

    public void setComments(List<Comment> comments) {
        this.comments = comments;
    }


    public String getTagIds() {
        return tagIds;
    }

    public void setTagIds(String tagIds) {
        this.tagIds = tagIds;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public void init() {
        this.tagIds = tagsToIds(this.getTags());
    }

    //1,2,3
    private String tagsToIds(List<Tag> tags) {
        if (!tags.isEmpty()) {
            StringBuffer ids = new StringBuffer();
            boolean flag = false;
            for (Tag tag : tags) {
                if (flag) {
                    ids.append(",");
                } else {
                    flag = true;
                }
                ids.append(tag.getId());
            }
            return ids.toString();
        } else {
            return tagIds;
        }
    }


    @Override
    public String toString() {
        return "Blog{" +
                "id=" + id +
                ", title='" + title + '\'' +
                ", content='" + content + '\'' +
                ", firstPicture='" + firstPicture + '\'' +
                ", flag='" + flag + '\'' +
                ", views=" + views +
                ", appreciation=" + appreciation +
                ", shareStatement=" + shareStatement +
                ", commentabled=" + commentabled +
                ", published=" + published +
                ", recommend=" + recommend +
                ", createTime=" + createTime +
                ", updateTime=" + updateTime +
                ", type=" + type +
                ", tags=" + tags +
                ", user=" + user +
                ", comments=" + comments +
                ", tagIds='" + tagIds + '\'' +
                ", description='" + description + '\'' +
                '}';
    }

    public void initTags(Long id) {
        List<Tag> tags=this.getTags();
        StringBuffer ids=new StringBuffer();
        if (!tags.isEmpty()){
            Boolean flag=false;
            for (Tag t:tags){
                if (flag){
                    ids.append(t.getId());
                    flag=true;
                }else {
                    ids.append(",");
                    ids.append(t.getId());
                }
            }
        }
        this.setTagIds(ids.toString());
    }
}

package com.zr.po;

public class BlogQuery {
    private String title;
    private Long typeId;
    private Boolean recommend;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public Long getTypeId() {
        return typeId;
    }

    public void setTypeId(Long typeId) {
        this.typeId = typeId;
    }

    public Boolean getRecommend() {
        return recommend;
    }

    public void setRecommend(Boolean recommend) {
        this.recommend = recommend;
    }

    @Override
    public String toString() {
        return "BlogQuery{" +
                "title='" + title + '\'' +
                ", typeId=" + typeId +
                ", recommend=" + recommend +
                '}';
    }
}

package com.zr.po;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * Created by limi on 2017/10/14.
 */
@Entity
@Table(name = "t_comment")
public class Comment {

    @Id
    @GeneratedValue
    private Long id;
    private String nickname;
    private String email;
    private String content;
    private String avatar;
    @Temporal(TemporalType.TIMESTAMP)
    private Date createTime;

    @ManyToOne
    private Blog blog;

    @OneToMany(mappedBy = "parentComment")
    private List<Comment> replyComments = new ArrayList<>();

    @ManyToOne
    private Comment parentComment;

    private boolean adminComment;

    public Comment() {
    }

    public Long getId() {
        return id;
    }

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

    public String getNickname() {
        return nickname;
    }

    public void setNickname(String nickname) {
        this.nickname = nickname;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getContent() {
        return content;
    }

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

    public String getAvatar() {
        return avatar;
    }

    public void setAvatar(String avatar) {
        this.avatar = avatar;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Blog getBlog() {
        return blog;
    }

    public void setBlog(Blog blog) {
        this.blog = blog;
    }

    public List<Comment> getReplyComments() {
        return replyComments;
    }

    public void setReplyComments(List<Comment> replyComments) {
        this.replyComments = replyComments;
    }

    public Comment getParentComment() {
        return parentComment;
    }

    public void setParentComment(Comment parentComment) {
        this.parentComment = parentComment;
    }

    public boolean isAdminComment() {
        return adminComment;
    }

    public void setAdminComment(boolean adminComment) {
        this.adminComment = adminComment;
    }

    @Override
    public String toString() {
        return "Comment{" +
                "id=" + id +
                ", nickname='" + nickname + '\'' +
                ", email='" + email + '\'' +
                ", content='" + content + '\'' +
                ", avatar='" + avatar + '\'' +
                ", createTime=" + createTime +
                ", blog=" + blog +
                ", replyComments=" + replyComments +
                ", parentComment=" + parentComment +
                ", adminComment=" + adminComment +
                '}';
    }
}

package com.zr.po;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;


@Entity
@Table(name = "t_tag")
public class Tag {

    @Id
    @GeneratedValue
    private Long id;
    private String name;

    @ManyToMany(mappedBy = "tags")
    private List<Blog> blogs = new ArrayList<>();

    public Tag() {
    }

    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 List<Blog> getBlogs() {
        return blogs;
    }

    public void setBlogs(List<Blog> blogs) {
        this.blogs = blogs;
    }

    @Override
    public String toString() {
        return "Tag{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

package com.zr.po;


import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;


@Entity
@Table(name = "t_type")
public class Type {

    @Id
    @GeneratedValue
    private Long id;

    private String name;

    @OneToMany(mappedBy = "type")
    private List<Blog> blogs = new ArrayList<>();

    public Type() {
    }

    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 List<Blog> getBlogs() {
        return blogs;
    }

    public void setBlogs(List<Blog> blogs) {
        this.blogs = blogs;
    }

    @Override
    public String toString() {
        return "Type{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

package com.zr.po;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;


@Entity
@Table(name = "t_user")
public class User {

    @Id
    @GeneratedValue
    private Long id;
    private String nickname;
    private String username;
    private String password;
    private String email;
    private String avatar;
    private Integer type;
    @Temporal(TemporalType.TIMESTAMP)
    private Date createTime;
    @Temporal(TemporalType.TIMESTAMP)
    private Date updateTime;

    @OneToMany(mappedBy = "user")
    private List<Blog> blogs = new ArrayList<>();

    public User() {
    }

    public Long getId() {
        return id;
    }

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

    public String getNickname() {
        return nickname;
    }

    public void setNickname(String nickname) {
        this.nickname = nickname;
    }

    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 getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getAvatar() {
        return avatar;
    }

    public void setAvatar(String avatar) {
        this.avatar = avatar;
    }

    public Integer getType() {
        return type;
    }

    public void setType(Integer type) {
        this.type = type;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }


    public List<Blog> getBlogs() {
        return blogs;
    }

    public void setBlogs(List<Blog> blogs) {
        this.blogs = blogs;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", nickname='" + nickname + '\'' +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", email='" + email + '\'' +
                ", avatar='" + avatar + '\'' +
                ", type=" + type +
                ", createTime=" + createTime +
                ", updateTime=" + updateTime +
                '}';
    }
}

service`

package com.zr.service;

import com.zr.po.Blog;
import com.zr.po.BlogQuery;
import com.zr.po.Tag;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

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

public interface IBlogService {
    Page<Blog> listBlog(Pageable pageable);

    void deleteById(Long id);

    void add(Blog blog);

    Blog getBlog(Long id);

    void update(Blog blog);

    Page<Blog> listBlog(Pageable pageable, BlogQuery blogQuery);

    List<Blog> listRecommendBlogTop(int i);

    Page<Blog> listBlog(String query, Pageable pageable);

    Page<Blog> listBlog(Long id, Pageable pageable);

    Long countBlog();

    Map<String, List<Blog>> archivesBlog();
}

package com.zr.service;

import com.zr.po.Comment;

import java.util.List;

public interface ICommentService {
    void save(Comment comment);

    List<Comment> listCommentByblogId(Long blogId);
}

package com.zr.service;

import com.zr.po.Tag;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.List;

public interface ITagService {
    Page<Tag> ListType(Pageable pageable);

    void deleteType(Long id);

    void addTag(Tag tag);

    Tag getTag(Long id);

    void update(Long id, Tag tag);

    List<Tag> listType();

    List<Tag> getTagByIds(String tagIds);

    List<Tag> listTypeTop(int i);
}

package com.zr.service;

import com.zr.po.Type;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

import java.util.List;

public interface ITypeService {
    Page<Type> ListType(Pageable pageable);

    void deleteType(Long id);

    void addType(Type type);

    Type getType(Long id);

    void update(Long id, Type type);

    List<Type> listType();

    List<Type> listTypeTop(int i);
}

package com.zr.service;

import com.zr.po.User;

public interface IUserService {
    User checkUser(String username, String password);
}

impl

import com.zr.dao.BlogDao;
import com.zr.po.Blog;
import com.zr.po.BlogQuery;
import com.zr.po.Tag;
import com.zr.po.Type;
import com.zr.service.IBlogService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.thymeleaf.util.StringUtils;

import javax.persistence.criteria.*;
import javax.servlet.http.HttpSession;
import java.util.*;

@Service
public class BlogServiceImpl implements IBlogService {
    @Autowired
    private BlogDao blogDao;

    @Override
    public Page<Blog> listBlog(Pageable pageable) {
        return blogDao.findAll(pageable);
    }

    @Override
    public void deleteById(Long id) {
        blogDao.deleteById(id);
    }

    @Override
    public void add(Blog blog) {
        blog.setCreateTime(new Date());
        blog.setUpdateTime(new Date());
        blogDao.save(blog);
    }

    @Override
    public Blog getBlog(Long id) {
        return blogDao.getOne(id);
    }

    @Override
    public void update(Blog blog) {
        Blog one=blogDao.getOne(blog.getId());
        BeanUtils.copyProperties(one,blog);
        one.setUpdateTime(new Date());
        blogDao.save(blog);
    }

    @Override
    public Page<Blog> listBlog(Pageable pageable, BlogQuery blogQuery) {
        Specification<Blog> specification = new Specification<Blog>() {
            @Override
            public Predicate toPredicate(Root<Blog> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {
                List<Predicate> predicates=new ArrayList<>();
                if (!StringUtils.isEmpty(blogQuery.getTitle())) {
                    predicates.add(criteriaBuilder.like(root.<String>get("title"),"%"+blogQuery.getTitle()+"%"));
                }
                if (blogQuery.getTypeId()!=null){
                    predicates.add(criteriaBuilder.equal(root.<Type>get("type").get("id"),blogQuery.getTypeId()));
                }
                if (blogQuery.getRecommend()!=null && blogQuery.getRecommend()){
                    predicates.add(criteriaBuilder.equal(root.<Boolean>get("recommend"),blogQuery.getRecommend()));
                }
                criteriaQuery.where(predicates.toArray(new Predicate[predicates.size()]));
                return null;
            }
        };
        return blogDao.findAll(specification,pageable);
    }

    @Override
    public List<Blog> listRecommendBlogTop(int i) {
        Sort sort=Sort.by(Sort.Direction.DESC,"updateTime");
        Pageable pageable= PageRequest.of(0,i,sort);
        List<Blog> blogs=blogDao.findTop(pageable);
        return blogs;
    }

    @Override
    public Page<Blog> listBlog(String query, Pageable pageable) {
        return blogDao.findByQuery("%"+query+"%",pageable);
    }

    @Override
    public Page<Blog> listBlog(Long id, Pageable pageable) {
        Specification<Blog> specification = new Specification<Blog>(){

            @Override
            public Predicate toPredicate(Root<Blog> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {
                Join join=root.join("tags");
                return criteriaBuilder.equal(join.get("id"),id);
            }
        };
        return blogDao.findAll(specification,pageable);
    }

    @Override
    public Long countBlog() {
        return blogDao.count();
    }

    @Override
    public Map<String, List<Blog>> archivesBlog() {
        List<String> year=blogDao.findGroupYear();
        Map<String,List<Blog>> map=new HashMap<>();
        for (String y:year){
            List<Blog> blogs=blogDao.findByYear(y);
            map.put(y,blogs);
        }
        return map;
    }
}

package com.zr.service.impl;

import com.zr.dao.CommentDao;
import com.zr.po.Comment;
import com.zr.service.ICommentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class CommentServiceImpl implements ICommentService {

    @Autowired
    private CommentDao commentDao;

    @Override
    public void save(Comment comment) {
        if (comment.getParentComment().getId()==-1){
            comment.setParentComment(null);
        }
        commentDao.save(comment);
    }

    @Override
    public List<Comment> listCommentByblogId(Long blogId) {
        Sort sort=Sort.by("createTime");
        List<Comment> comments=commentDao.findByBlogIdAndParentCommentNull(blogId,sort);
        return comments;
    }
}

package com.zr.service.impl;

import com.zr.dao.TagDao;
import com.zr.po.Tag;
import com.zr.po.Type;
import com.zr.service.ITagService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.thymeleaf.util.StringUtils;

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

@Service
public class TagServiceImpl implements ITagService {
    @Autowired
    private TagDao tagDao;
    @Override
    public Page<Tag> ListType(Pageable pageable) {
        Page<Tag> page=tagDao.findAll(pageable);
        return page;
    }

    @Override
    public void deleteType(Long id) {
        tagDao.deleteById(id);
    }

    @Override
    public void addTag(Tag tag) {
        tagDao.save(tag);
    }

    @Override
    public Tag getTag(Long id) {
        return tagDao.getOne(id);
    }

    @Override
    public void update(Long id, Tag tag) {
        Tag tag1=tagDao.getOne(id);
        BeanUtils.copyProperties(tag,tag1);
        tagDao.save(tag1);
    }

    @Override
    public List<Tag> listType() {
        return tagDao.findAll();
    }

    @Override
    public List<Tag> getTagByIds(String tagIds) {
        List<Long> ids=new ArrayList<>();
        if (tagIds!=null && tagIds!=""){
            String[] s=tagIds.split(",");
            for (int i=0;i<s.length;i++){
                if (!StringUtils.isEmpty(s[i]))
                    ids.add(new Long(s[i]));
            }
        }
        List<Tag> tags=tagDao.findAllById(ids);
        return tags;
    }

    @Override
    public List<Tag> listTypeTop(int i) {
        Sort sort=Sort.by(Sort.Direction.DESC,"blogs.size");
        Pageable pageable= PageRequest.of(0,i,sort);
        List<Tag> tags=tagDao.findTop(pageable);
        return tags;
    }
}

package com.zr.service.impl;

import com.zr.dao.TypeDao;
import com.zr.po.Type;
import com.zr.service.ITypeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class TypeServiceImpl implements ITypeService {
    @Autowired
    private TypeDao typeDao;

    @Override
    public Page<Type> ListType(Pageable pageable) {
        Page<Type> page=typeDao.findAll(pageable);
        return page;
    }

    @Override
    public void deleteType(Long id) {
        typeDao.deleteById(id);
    }

    @Override
    public void addType(Type type) {
        typeDao.save(type);
    }

    @Override
    public Type getType(Long id) {
        return typeDao.getOne(id);
    }

    @Override
    public void update(Long id, Type type) {
        Type type1=typeDao.getOne(id);
        BeanUtils.copyProperties(type,type1);
        typeDao.save(type1);
    }

    @Override
    public List<Type> listType() {
        return typeDao.findAll();
    }

    @Override
    public List<Type> listTypeTop(int i) {
        Sort sort=Sort.by(Sort.Direction.DESC,"blogs.size");
        Pageable pageable=PageRequest.of(0,i,sort);
        List<Type> types=typeDao.findTop(pageable);
        return types;
    }
}

```java
package com.zr.service.impl;

import com.zr.dao.UserDao;
import com.zr.po.User;
import com.zr.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import util.MD5Util;

@Service
public class UserServiceImpl implements IUserService {
    @Autowired
    private UserDao userDao;

    @Override
    public User checkUser(String username, String password) {
        return userDao.findByUsernameAndPassword(username, MD5Util.code(password));
    }
}

web

```java
package com.zr.web;

import com.sun.org.apache.xpath.internal.operations.Mod;
import com.zr.po.Blog;
import com.zr.po.BlogQuery;
import com.zr.po.Tag;
import com.zr.po.User;
import com.zr.service.IBlogService;
import com.zr.service.ITagService;
import com.zr.service.ITypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpSession;
import java.util.List;

@Controller
@RequestMapping("admin/blogs")
public class BlogController {
    @Autowired
    private IBlogService blogService;

    @Autowired
    private ITypeService typeService;

    @Autowired
    private ITagService tagService;

    @RequestMapping
    public String blogs(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
        Page<Blog> page = blogService.listBlog(pageable);
        model.addAttribute("types",typeService.listType());
        model.addAttribute("page",page);
        return "admin/blogs";
    }

    @GetMapping("{id}/delete")
    public String delete(@PathVariable Long id){
        blogService.deleteById(id);
        return "redirect:/admin/blogs";
    }

    @GetMapping("input")
    public String input(Model model){
        model.addAttribute("blog",new Blog());
        model.addAttribute("types",typeService.listType());
        model.addAttribute("tags",tagService.listType());
        return "admin/blogs-input";
    }

    @RequestMapping("add")
    public String add(Blog blog, HttpSession session){
        User user=(User) session.getAttribute("user");
        blog.setUser(user);
        String tagIds=blog.getTagIds();
        List<Tag> tagList=tagService.getTagByIds(tagIds);
        blog.setTags(tagList);
        if (blog.getId()==null){
            blogService.add(blog);
        }else {
            blogService.update(blog);
        }

        return "redirect:/admin/blogs";
    }

    @RequestMapping("{id}/toUpdate")
    public String update(@PathVariable Long id,Model model){
        Blog blog=blogService.getBlog(id);
        blog.initTags(id);
        model.addAttribute("blog",blog);
        model.addAttribute("types",typeService.listType());
        model.addAttribute("tags",tagService.listType());
        return "admin/blogs-input";
    }

    @RequestMapping("search")
    public String search(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC) Pageable pageable, Model model,BlogQuery blogQuery){
        Page<Blog> page = blogService.listBlog(pageable,blogQuery);
        model.addAttribute("page",page);

        return "admin/blogs :: blogList";
    }
}

package com.zr.web;

import com.zr.po.*;
import com.zr.service.IBlogService;
import com.zr.service.ICommentService;
import com.zr.service.ITagService;
import com.zr.service.ITypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.Map;

@Controller
public class IndexController {

    @Autowired
    private IBlogService blogService;

    @Autowired
    private ITypeService typeService;

    @Autowired
    private ITagService tagService;

    @Autowired
    private ICommentService commentService;

    @RequestMapping("/")
    public String index(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
        Page<Blog> page = blogService.listBlog(pageable);
        List<Type> types=typeService.listTypeTop(6);
        List<Tag> tags=tagService.listTypeTop(6);
        List<Blog> blogs=blogService.listRecommendBlogTop(3);
        model.addAttribute("page",page);
        model.addAttribute("types",types);
        model.addAttribute("tags",tags);
        model.addAttribute("recommendBlogs",blogs);
        return "index";
    }

    @GetMapping("/footer/newblog")
    public String newblogs(Model model){
        List<Blog> blogs = blogService.listRecommendBlogTop(3);
        model.addAttribute("newblogs",blogs);
        return "_fragments :: newblogList";
    }

    @PostMapping("/search")
    public String search(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC) Pageable pageable, @RequestParam String query, Model model){
        Page<Blog> page=blogService.listBlog(query,pageable);
        model.addAttribute("page",page);
        return "search";
    }

    @GetMapping("blog/{id}")
    public String blog(@PathVariable Long id,Model model){
        model.addAttribute("blog",blogService.getBlog(id));
        return "blog";
    }

    @RequestMapping("about")
    public String about() {
        return "about";
    }

    @GetMapping("archives")
    public String archives(Model model){
        Long count=blogService.countBlog();
        Map<String,List<Blog>> blogs=blogService.archivesBlog();
        model.addAttribute("archiveMap",blogs);
        model.addAttribute("blogCount",count);
        return "archives";
    }

    @RequestMapping("/comments")
    public String post(Comment comment,HttpSession session){
        User user=(User)session.getAttribute("user");
        if (user==null){
            comment.setAdminComment(false);
        }else {
            comment.setAdminComment(true);
        }
        Long blogID=comment.getBlog().getId();
        commentService.save(comment);
        return "redirect:/comments/"+blogID;
    }

    @RequestMapping("/comments/{blogId}")
    public String comments(@PathVariable Long blogId,Model model){
        List<Comment> comments=commentService.listCommentByblogId(blogId);
        model.addAttribute("comments",comments);
        return "blog ::commentList";
    }
}

package com.zr.web;

import com.zr.po.User;
import com.zr.service.IUserService;
import com.zr.service.impl.UserServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;

@Controller
@RequestMapping("/admin")
public class LoginController {
    @Autowired
    private IUserService userService;

    @GetMapping
    public String tologin(){
        return "admin/login";
    }

    @PostMapping("/login")
    public String login(String username, String password, HttpSession session, RedirectAttributes redirectAttributes){
        User user = userService.checkUser(username, password);
        if (user!=null){
            session.setAttribute("user",user);
            return "admin/index";
        }else{
            redirectAttributes.addFlashAttribute("message","用户名或密码错误");
            return "redirect:/admin";
        }
    }

    @GetMapping("/logout")
    public String logout(HttpSession session){
        session.removeAttribute("user");
        return "admin/login";
    }
}

package com.zr.web;

import com.zr.po.Tag;
import com.zr.po.Type;
import com.zr.service.ITagService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;


@Controller
@RequestMapping("admin/tags")
public class TagController {
    @Autowired
    private ITagService tagService;

    @GetMapping
    public String list(@PageableDefault(size=5,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
        Page<Tag> page=tagService.ListType(pageable);
        model.addAttribute("page",page);
        return "admin/tags";
    }

    @GetMapping("{id}/delete")
    public String delete(@PathVariable Long id){
        tagService.deleteType(id);
        return "redirect:/admin/tags";
    }

    @GetMapping("input")
    public String input(Model model){
        model.addAttribute("tag",new Tag());
        return "admin/tags-input";
    }

    @PostMapping("add")
    public String add(Tag tag){
        tagService.addTag(tag);
        return "redirect:/admin/tags";
    }

    @GetMapping("{id}/toUpdate")
    public String toUpdate(@PathVariable Long id, Model model, RedirectAttributes attributes){
        Tag tag=tagService.getTag(id);
        model.addAttribute("tag",tag);
        return "admin/tags-input";
    }

    @PostMapping("update/{id}")
    public String update(Tag tag,@PathVariable Long id){
        tagService.update(id,tag);
        return "redirect:/admin/tags";
    }
}

package com.zr.web;

import com.zr.po.Blog;
import com.zr.po.Tag;
import com.zr.service.IBlogService;
import com.zr.service.ITagService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;

@Controller
public class TagShowController {

    @Autowired
    private ITagService tagService;

    @Autowired
    private IBlogService blogService;

    @RequestMapping("tags/{id}")
    public String tags(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC)Pageable pageable, @PathVariable Long id, Model model){
        List<Tag> tags = tagService.listTypeTop(50);
        if (id==-1){
            id=tags.get(0).getId();
        }
        Page<Blog> page=blogService.listBlog(id,pageable);
        model.addAttribute("page",page);
        model.addAttribute("tags",tags);
        return "tags";
    }
}

package com.zr.web;


import com.zr.po.Type;
import com.zr.service.ITypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/admin/types")
public class typeController {

    @Autowired
    private ITypeService typeService;

    @GetMapping
    public String list(@PageableDefault(size=5,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
        Page<Type> page=typeService.ListType(pageable);
        model.addAttribute("page",page);
        return "admin/types";
    }

    @GetMapping("{id}/delete")
    public String delete(@PathVariable Long id){
        typeService.deleteType(id);
        return "redirect:/admin/types";
    }

    @GetMapping("input")
    public String input(Model model){
        model.addAttribute("type",new Type());
        return "admin/types-input";
    }

    @PostMapping("add")
    public String add(Type type){
        typeService.addType(type);
        return "redirect:/admin/types";
    }

    @GetMapping("{id}/toUpdate")
    public String toUpdate(@PathVariable Long id, Model model){
        Type type=typeService.getType(id);
        model.addAttribute("type",type);
        return "admin/types-input";
    }

    @PostMapping("update/{id}")
    public String update(Type type,@PathVariable Long id){
        typeService.update(id,type);
        return "redirect:/admin/types";
    }
}

package com.zr.web;

import com.zr.po.Blog;
import com.zr.po.BlogQuery;
import com.zr.po.Type;
import com.zr.service.IBlogService;
import com.zr.service.ITypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.List;

@Controller
public class TypesShowController {
    @Autowired
    private ITypeService typeService;

    @Autowired
    private IBlogService blogService;

    @GetMapping("types/{id}")
    public String types(@PageableDefault(size = 5,sort = {"updateTime"},direction = Sort.Direction.DESC) Pageable pageable, @PathVariable Long id, Model model){
        List<Type> types = typeService.listTypeTop(50);
        BlogQuery blogQuery = new BlogQuery();
        if (id==-1){
            id=types.get(0).getId();
        }
        blogQuery.setTypeId(id);
        Page<Blog> page = blogService.listBlog(pageable,blogQuery);
        model.addAttribute("types",types);
        model.addAttribute("page",page);
        return "types";
    }
}

package com.zr;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class BlogApplication {
    public static void main(String[] args) {
        SpringApplication.run(BlogApplication.class,args);
    }
}