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SSMM（spring+springmvc+maven+mybatis）框架整合

总体流程

启动mysql
- 启动mysql server（docker版）
- 启动mysql client（这里使用navicat）
- 建库
- 建表
创建mvn项目
- 手工创建mvn项目
- 引入spring、springmvc、mybatis以及json相关依赖（即jar）
- 引入mysql库配置（src/main/resources）
- 引入spring配置文件（src/main/resources）
- 创建基本包结构（controller、service、dao、mapper、model）
- 创建src/main/resources/mapper包，用于放置*Mapper.xml
- 配置web.xml，使spring生效
使用mybatis-generator创建mybatis的xml文件、mapper层接口、model层
- 下载mybatis-generator-core-1.3.2.jar和mysql-connector-java-5.1.37.jar，并放置在同一个包例如"mybatis-generator"下
- 在该包下创建generatorConfig.xml文件并编写
- 执行生成命令
- 将model层生成的类拷贝到项目中的model包里
- 将mapper层生成的接口拷贝到项目中的mapper包里
- 将生成的xml文件拷贝到src/main/resources/mapper包下
编写dao、service、controller
浏览器或postman测试

一、启动mysql

1、启动docker引擎

双击Docker图标（应用程序）

2、启动mysql server（docker容器）

先删除容器
```
1 docker rm -f mysql:5.7
```
再启动容器

1 docker run --name mysql5.7 -e MYSQL_ROOT_PASSWORD=123456 -v /Users/wangna/Desktop/docker-data/mysql/data:/var/lib/mysql -v /Users/wangna/Desktop/docker-data/mysql/file/my.cnf:/etc/my.cnf -p 3306:3306 -d  mysql:5.7

或者用

```
docker start mysql5.7
```
检查是否已经启动容器
```
docker ps -a
```

3、启动mysql client（即打开navicat，连接mysql server）

双击"navicat for mysql"图标（应用程序）

4、创建数据库

打开连接（即双击连接）
在连接上右击，创建数据库（前提，该连接内没有该数据库）

5、创建数据表

二、创建mvn项目

1、手工创建mvn项目

创建后，先使用mvn clean install构建项目，之后引入eclipse

注意点：

war包（即必须有web.xml），这个在之后的springboot中可以去掉（springboot可以直接使用jar包启动web项目）
引入eclipse出错后，查看Problems窗口的提示，一步一步进行修改
pom.xml中需要引入properties中需要引入

1     <properties>
2         <java.version>1.8</java.version>
3         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
4         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
5     </properties>

第一条：指定jdk版本
后两条：处理中文问题

pom.xml中需要引入jdk1.8的maven编译插件

 1 <build>
 2         <plugins>
 3             <plugin>
 4                 <groupId>org.apache.maven.plugins</groupId>
 5                 <artifactId>maven-compiler-plugin</artifactId>
 6                 <configuration>
 7                     <source>1.8</source>
 8                     <target>1.8</target>
 9                     <encoding>utf-8</encoding>
10                 </configuration>
11             </plugin>
12         </plugins>
13     </build>

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2、在pom.xml文件中引入spring、springmvc、mybatis以及json相关依赖（即jar）

spring核心包：core、bean、context

 1      <dependency>
 2             <groupId>org.springframework</groupId>
 3             <artifactId>spring-core</artifactId>
 4             <version>${spring.version}</version>
 5         </dependency>
 6         <dependency>
 7             <groupId>org.springframework</groupId>
 8             <artifactId>spring-beans</artifactId>
 9             <version>${spring.version}</version>
10         </dependency>
11         <dependency>
12             <groupId>org.springframework</groupId>
13             <artifactId>spring-context</artifactId>
14             <version>${spring.version}</version>
15         </dependency>
16     </dependencies>

别忘了版本：

<spring.version>4.2.4.RELEASE</spring.version>

springmvc：web、webmvc

 1                      <!-- spring mvc -->
 2         <dependency>
 3             <groupId>org.springframework</groupId>
 4             <artifactId>spring-web</artifactId>
 5             <version>${spring.version}</version>
 6         </dependency>
 7         <dependency>
 8             <groupId>org.springframework</groupId>
 9             <artifactId>spring-webmvc</artifactId>
10             <version>${spring.version}</version>
11         </dependency>

数据库相关

spring-jdbc

1         <dependency>
2             <groupId>org.springframework</groupId>
3             <artifactId>spring-jdbc</artifactId>
4             <version>${spring.version}</version>
5         </dependency>

mysql-connector-java（Java连接mysql的必须包）

1         <dependency>
2             <groupId>mysql</groupId>
3             <artifactId>mysql-connector-java</artifactId>
4             <version>5.1.27</version>
5             <scope>runtime</scope>
6         </dependency>

tomcat-jdbc（数据源，更好的开源实现是druid）

1         <dependency>
2             <groupId>org.apache.tomcat</groupId>
3             <artifactId>tomcat-jdbc</artifactId>
4             <version>7.0.47</version>
5         </dependency>

mybatis：

mybatis

1         <dependency>
2             <groupId>org.mybatis</groupId>
3             <artifactId>mybatis</artifactId>
4             <version>${mybatis.version}</version>
5         </dependency>

版本：

<mybatis.version>3.2.8</mybatis.version>

mybatis-spring：mybatis与spring进行集成的包

1         <dependency>
2             <groupId>org.mybatis</groupId>
3             <artifactId>mybatis-spring</artifactId>
4             <version>${mybatis-spring.version}</version>
5         </dependency>

版本：

<mybatis-spring.version>1.2.2</mybatis-spring.version>

json相关（使用Jackson）
- core
- annotations
- databind

 1                 <!-- json -->
 2         <dependency>
 3             <groupId>com.fasterxml.jackson.core</groupId>
 4             <artifactId>jackson-annotations</artifactId>
 5             <version>${jackson.version}</version>
 6         </dependency>
 7         <dependency>
 8             <groupId>com.fasterxml.jackson.core</groupId>
 9             <artifactId>jackson-core</artifactId>
10             <version>${jackson.version}</version>
11         </dependency>
12         <dependency>
13             <groupId>com.fasterxml.jackson.core</groupId>
14             <artifactId>jackson-databind</artifactId>
15             <version>${jackson.version}</version>
16         </dependency>

版本：

<jackson.version>2.6.4</jackson.version>

3、引入mysql库配置（src/main/resources）

jdbc.properties

1 jdbc.driverClassName = com.mysql.jdbc.Driver
2 jdbc.url = jdbc:mysql://localhost:3306/wangna?zeroDateTimeBehavior=convertToNull&amp;useUnicode=true&amp;characterEncoding=utf-8
3 jdbc.username = root
4 jdbc.password = 123456

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jdbc.driverClassName：数据库驱动（Java连接数据库必须有的），其中com.mysql.jdbc.Driver来源于mysql-connector-java这个依赖包
jdbc.url：
- 格式：jdbc:mysql://ip:port/数据库名
- 例：jdbc:mysql://localhost:3306/wn
  - localhost即本地ip，等于127.0.0.1
jdbc.username：数据库用户名，默认是root
jdbc.password：数据库密码，就是启动mysql容器的命令中的MYSQL_ROOT_PASSWORD的值

4、引入spring配置文件（src/main/resources）

spring.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 4     xmlns:context="http://www.springframework.org/schema/context"
 5     xmlns:mvc="http://www.springframework.org/schema/mvc"
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans 
 7                            http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
 8                            http://www.springframework.org/schema/context 
 9                            http://www.springframework.org/schema/context/spring-context-3.2.xsd
10                            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
11                            
12     <!-- 注解扫描 -->
13     <context:component-scan base-package="com.wn"/>
14     <!-- 启动jackson -->
15     <mvc:annotation-driven />
16     <!-- 引入属性文件 -->
17     <context:property-placeholder location="classpath:jdbc.properties"/>
18     
19     <!-- 引入数据源 -->
20     <bean id="xxxDataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
21         <property name="driverClassName" value="${jdbc.driverClassName}" />
22         <property name="url" value="${jdbc.url}" />
23         <property name="username" value="${jdbc.username}" />
24         <property name="password" value="${jdbc.password}" />
25     </bean>
26     
27     <!-- 引入mybatis -->
28     <bean id="xxxSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
29         <property name="dataSource" ref="xxxDataSource" />
30         <property name="mapperLocations">
31             <list>
32                 <value>classpath*:mapper/*Mapper.xml</value>
33             </list>
34         </property>
35     </bean>
36     <bean id="xxxMapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
37         <property name="basePackage" value="com.wn.mapper" />
38         <property name="sqlSessionFactoryBeanName" value="xxxSqlSessionFactory" />
39     </bean>
40 </beans>

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<context:component-scan>：扫描基础包，用于使注解生效，eg.com.wn，那么com.wn及其子包com.wn.*下的注解都会生效
<mvc:annotation-driven />：启动jackson，这里注意springmvc自动返回json数据的三步
- 引入jackson的三个包
- 启动该注解
- 在controller层中类或方法上添加@ResponseBody注解
context:property-placeholder：将外部文件引入到该文件中，进而在后续的配置中使用外部文件的配置属性，例如：引入jdbc.properties，之后数据源的配置就可以使用jdbc.properties中的属性
<bean>
- 数据源：使用jdbc.properties中的四个属性进行构建，其中org.apache.tomcat.jdbc.pool.DataSource来源于tomcat-jdbc这个依赖包
- sqlSessionFactory：mybatis的部分，需要根据之前创建的数据源以及将要扫描的Mapper.xml来创建，其中org.mybatis.spring.SqlSessionFactoryBean来源于mybatis-spring依赖包
- MapperScannerConfigurer：mybatis的部分，需要根据之前创建的sqlSessionFactory和mapper层接口的包（见5）

5、创建基本包（package）结构（controller、service、dao、mapper、model）

eg.com.wn.controller，这里的基础包com.wn与spring.xml中的<context:component-scan>一样

6、创建src/main/resources/mapper的folder包，用于放置*Mapper.xml

这里的src/main/resources/mapper/*Mapper.xml与spring.xml中的xxxSqlSessionFactory的mapperLocations的值classpath*:mapper/*Mapper.xml一样

7、配置web.xml，使spring生效

 1     <servlet>
 2         <servlet-name>dispatcherServlet</servlet-name>
 3         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 4         <init-param>
 5             <param-name>contextConfigLocation</param-name>
 6             <param-value>classpath*:spring*.xml</param-value>
 7         </init-param>
 8         <load-on-startup>1</load-on-startup>
 9     </servlet>
10     <servlet-mapping>
11         <servlet-name>dispatcherServlet</servlet-name>
12         <url-pattern>/</url-pattern>
13     </servlet-mapping>
14 
15     <filter>
16         <filter-name>encodingFilter</filter-name>
17         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
18         <init-param>
19             <param-name>encoding</param-name>
20             <param-value>UTF-8</param-value>
21         </init-param>
22         <init-param>
23             <param-name>forceEncoding</param-name>
24             <param-value>true</param-value>
25         </init-param>
26     </filter>
27     <filter-mapping>
28         <filter-name>encodingFilter</filter-name>
29         <url-pattern>/*</url-pattern>
30     </filter-mapping>

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设置DispatcherServlet
- 指定spring配置文件（即上述的spring.xml）所在的位置与名称
- 指定该servlet的扫描路径为根路径"/"，即该项目下的所有请求都会被DispatcherServlet所拦截并分发到相应的controller类中的方法上
配置CharacterEncodingFilter：处理中文问题

三、使用mybatis-generator创建mybatis的xml文件、mapper层接口、model层

1、下载mybatis-generator-core-1.3.2.jar和mysql-connector-java-5.1.37.jar，并放置在同一个包例如"mybatis-generator"下

2、在该包下创建generatorConfig.xml文件

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE generatorConfiguration
 3   PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 4   "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 5 <generatorConfiguration>
 6     <!--数据库驱动-->
 7     <classPathEntry    location="mysql-connector-java-5.1.37.jar"/>
 8     <context id="mysql">
 9         <!-- 用于防止生成大量注释 -->
10         <commentGenerator>
11             <property name="suppressDate" value="true"/>
12             <property name="suppressAllComments" value="true"/>
13         </commentGenerator>
14         <!--数据库链接地址账号密码-->
15         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/wn" userId="root" password="123456">
16         </jdbcConnection>
17         <javaTypeResolver>
18             <property name="forceBigDecimals" value="false"/>
19         </javaTypeResolver>
20         <!--生成Model类存放位置-->
21         <javaModelGenerator targetPackage="com.wn.model" targetProject="xxx">
22             <property name="enableSubPackages" value="true"/>
23             <property name="trimStrings" value="true"/>
24         </javaModelGenerator>
25         <!--生成映射文件存放位置-->
26         <sqlMapGenerator targetPackage="njkj" targetProject="xxx">
27             <property name="enableSubPackages" value="true"/>
28         </sqlMapGenerator>
29         <!--生成mapper接口存放位置-->
30         <javaClientGenerator type="XMLMAPPER" targetPackage="com.wn.mapper" targetProject="xxx">
31             <property name="enableSubPackages" value="true"/>
32         </javaClientGenerator>
33         <!--生成对应表及类名-->
34         <table tableName="t_book" domainObjectName="Book" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">  
35         </table>
36 
37     </context>
38 </generatorConfiguration>

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说明：每一条的含义参见http://www.cnblogs.com/java-zhao/p/5569714.html

3、执行命令（在"mybatis-generator"包下）

进入"mybatis-generator"包
创建xxx包
java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite

4、将生成的类、接口、xml拷贝到项目中

将model层生成的类拷贝到项目中的model包里

 1 package com.wn.model;
 2 
 3 import java.util.Date;
 4 
 5 public class Book {
 6     private Integer id;
 7 
 8     private String bookName;
 9 
10     private String author;
11 
12     private Date publishDate;
13 
14     public Integer getId() {
15         return id;
16     }
17 
18     public void setId(Integer id) {
19         this.id = id;
20     }
21 
22     public String getBookName() {
23         return bookName;
24     }
25 
26     public void setBookName(String bookName) {
27         this.bookName = bookName == null ? null : bookName.trim();
28     }
29 
30     public String getAuthor() {
31         return author;
32     }
33 
34     public void setAuthor(String author) {
35         this.author = author == null ? null : author.trim();
36     }
37 
38     public Date getPublishDate() {
39         return publishDate;
40     }
41 
42     public void setPublishDate(Date publishDate) {
43         this.publishDate = publishDate;
44     }
45 }

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将mapper层生成的接口拷贝到项目中的mapper包里

 1 package com.wn.mapper;
 2 
 3 import com.wn.model.Book;
 4 
 5 public interface BookMapper {
 6     int deleteByPrimaryKey(Integer id);
 7 
 8     int insert(Book record);
 9 
10     int insertSelective(Book record);
11 
12     Book selectByPrimaryKey(Integer id);
13 
14     int updateByPrimaryKeySelective(Book record);
15 
16     int updateByPrimaryKey(Book record);
17 }

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将生成的xml文件拷贝到src/main/resources/mapper包下

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 <mapper namespace="com.wn.mapper.BookMapper">
 4     <resultMap id="BaseResultMap" type="com.wn.model.Book">
 5         <id column="id" property="id" jdbcType="INTEGER" />
 6         <result column="book_name" property="bookName" jdbcType="VARCHAR" />
 7         <result column="author" property="author" jdbcType="VARCHAR" />
 8         <result column="publish_date" property="publishDate" jdbcType="TIMESTAMP" />
 9     </resultMap>
10     <sql id="Base_Column_List">
11         id, book_name, author, publish_date
12     </sql>
13     <select id="selectByPrimaryKey" resultMap="BaseResultMap"
14         parameterType="java.lang.Integer">
15         select
16         <include refid="Base_Column_List" />
17         from t_book
18         where id = #{id,jdbcType=INTEGER}
19     </select>
20     <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
21         delete from t_book
22         where id = #{id,jdbcType=INTEGER}
23     </delete>
24     <insert id="insert" parameterType="com.wn.model.Book">
25         insert into t_book (id, book_name, author,
26         publish_date)
27         values (#{id,jdbcType=INTEGER}, #{bookName,jdbcType=VARCHAR},
28         #{author,jdbcType=VARCHAR},
29         #{publishDate,jdbcType=TIMESTAMP})
30     </insert>
31     <insert id="insertSelective" parameterType="com.wn.model.Book">
32         insert into t_book
33         <trim prefix="(" suffix=")" suffixOverrides=",">
34             <if test="id != null">
35                 id,
36             </if>
37             <if test="bookName != null">
38                 book_name,
39             </if>
40             <if test="author != null">
41                 author,
42             </if>
43             <if test="publishDate != null">
44                 publish_date,
45             </if>
46         </trim>
47         <trim prefix="values (" suffix=")" suffixOverrides=",">
48             <if test="id != null">
49                 #{id,jdbcType=INTEGER},
50             </if>
51             <if test="bookName != null">
52                 #{bookName,jdbcType=VARCHAR},
53             </if>
54             <if test="author != null">
55                 #{author,jdbcType=VARCHAR},
56             </if>
57             <if test="publishDate != null">
58                 #{publishDate,jdbcType=TIMESTAMP},
59             </if>
60         </trim>
61     </insert>
62     <update id="updateByPrimaryKeySelective" parameterType="com.wn.model.Book">
63         update t_book
64         <set>
65             <if test="bookName != null">
66                 book_name = #{bookName,jdbcType=VARCHAR},
67             </if>
68             <if test="author != null">
69                 author = #{author,jdbcType=VARCHAR},
70             </if>
71             <if test="publishDate != null">
72                 publish_date = #{publishDate,jdbcType=TIMESTAMP},
73             </if>
74         </set>
75         where id = #{id,jdbcType=INTEGER}
76     </update>
77     <update id="updateByPrimaryKey" parameterType="com.wn.model.Book">
78         update t_book
79         set book_name = #{bookName,jdbcType=VARCHAR},
80         author = #{author,jdbcType=VARCHAR},
81         publish_date = #{publishDate,jdbcType=TIMESTAMP}
82         where id = #{id,jdbcType=INTEGER}
83     </update>
84 </mapper>

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namespace="com.wn.mapper.BookMapper"：namespace的值必须是生成的mapper接口的全类名
resultMap
- 作用：对应数据库表与生成的model类的属性对应关系
- resultMap下的type="com.wn.model.Book"必须是生成的model类的全类名
select
- id：一定是mapper接口的方法名，eg。也就是说，当dao调用mapper接口中的selectByPrimaryKey的时候，该方法会自动调用BookMapper.xml中的id=selectByPrimaryKey下的语句，或者说，BookMapper.xml就是BookMapper接口的实现类
- resultMap：返回值类型，还有一个是resultType（作业？）
- parameterType：参数（入参）类型
- 获取入参用#{id}
delete
- id：同上
insert
update
updateSelective
- <set>标签：做了两件事
  - 添加了set
  - 去掉尾部的","

四、编写dao、service、controller

1、BookDao

 1 package com.wn.dao;
 2 
 3 import org.springframework.beans.factory.annotation.Autowired;
 4 import org.springframework.stereotype.Repository;
 5 
 6 import com.wn.mapper.BookMapper;
 7 import com.wn.model.Book;
 8 
 9 @Repository
10 public class BookDao {
11     @Autowired
12     private BookMapper bookMapper;
13 
14     // 添加
15     public boolean add(Book book) {
16         return bookMapper.insert(book) == 1 ? true : false;
17     }
18 
19     // 显示
20     public Book selectById(Integer id) {
21         return bookMapper.selectByPrimaryKey(id);
22     }
23 
24     // 删除
25     public boolean deleteById(Integer id) {
26         return bookMapper.deleteByPrimaryKey(id) == 1 ? true : false;
27     }
28 
29     // 修改
30     public boolean updateById(Book book) {
31         return bookMapper.updateByPrimaryKey(book) == 1 ? true : false;
32     }
33 }

2、BookService

 1 package com.wn.service;
 2 
 3 import java.util.Date;
 4 
 5 import org.springframework.beans.factory.annotation.Autowired;
 6 import org.springframework.stereotype.Service;
 7 
 8 import com.wn.dao.BookDao;
 9 import com.wn.model.Book;
10 
11 @Service
12 public class BookService {
13     @Autowired
14     private BookDao bookDao;
15 
16     // 添加
17     public boolean addBook(String bookName, String author, Date publishDate) {
18         Book book = new Book();
19         book.setBookName(bookName);
20         book.setAuthor(author);
21         book.setPublishDate(publishDate);
22 
23         return bookDao.add(book);
24     }
25 
26     // 显示
27     public Book getBook(Integer id) {
28         return bookDao.selectById(id);
29     }
30 
31     // 删除
32     public boolean deleteBook(Integer id) {
33         return bookDao.deleteById(id);
34     }
35 
36     // 修改
37     public boolean updateBook(Integer id, String bookName, String author, Date publishDate) {
38         Book book = getBook(id);
39         book.setBookName(bookName);
40         book.setAuthor(author);
41         book.setPublishDate(publishDate);
42 
43         return bookDao.updateById(book);
44     }
45 }

3、BookController

 1 package com.wn.controller;
 2 
 3 import java.text.ParseException;
 4 import java.util.Date;
 5 
 6 import org.apache.commons.lang3.time.DateFormatUtils;
 7 import org.apache.commons.lang3.time.DateUtils;
 8 import org.springframework.beans.factory.annotation.Autowired;
 9 import org.springframework.format.annotation.DateTimeFormat;
10 import org.springframework.web.bind.annotation.PathVariable;
11 import org.springframework.web.bind.annotation.RequestMapping;
12 import org.springframework.web.bind.annotation.RequestMethod;
13 import org.springframework.web.bind.annotation.RequestParam;
14 import org.springframework.web.bind.annotation.RestController;
15 
16 import com.wn.model.Book;
17 import com.wn.resp.BookResp;
18 import com.wn.service.BookService;
19 
20 @RestController
21 @RequestMapping("/book")
22 public class BookController {
23     @Autowired
24     private BookService bookService;
25 
26     // 添加
27     @RequestMapping(value = "/add", method = RequestMethod.POST)
28     public boolean addBook(@RequestParam("bookName") String bookName, @RequestParam("author") String author,
29             @RequestParam("publishDate") String publishDateStr) {
30         try {
31             Date publishDate = DateUtils.parseDate(publishDateStr, "yyyy-MM-dd HH:mm:ss");
32             return bookService.addBook(bookName, author, publishDate);
33         } catch (ParseException e) {
34             e.printStackTrace();
35         }
36         return false;
37     }
38 
39     @RequestMapping(value = "/add2", method = RequestMethod.POST)
40     public boolean addBook2(@RequestParam("bookName") String bookName, @RequestParam("author") String author,
41             @RequestParam("publishDate") @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") Date publishDate) {
42         return bookService.addBook(bookName, author, publishDate);
43     }
44 
45     // 显示
46     @RequestMapping(value = "/{id}", method = RequestMethod.GET)
47     public BookResp getBook(@PathVariable("id") Integer id) {
48         Book book = bookService.getBook(id);
49         String dateStr = DateFormatUtils.format(book.getPublishDate(), "yyyy-MM-dd HH:mm:ss");
50         BookResp resp = new BookResp();
51         resp.setId(book.getId());
52         resp.setAuthor(book.getAuthor());
53         resp.setBookName(book.getBookName());
54         resp.setPublishDate(dateStr);
55         return resp;
56     }
57 
58     // 删除 被注释的是删除方法一
59     // @RequestMapping(value = "/delete", method = RequestMethod.DELETE)
60     // public boolean deleteBook(@RequestParam("id") Integer id) {
61     // return bookService.deleteBook(id);
62     // }
63 
64     @RequestMapping(value = "/delete/{id}", method = RequestMethod.DELETE)
65     public boolean deleteBook(@PathVariable("id") Integer id) {
66         return bookService.deleteBook(id);
67     }
68 
69     // 修改
70     @RequestMapping(value = "/update", method = RequestMethod.PUT)
71     public boolean updateBook(@RequestParam("id") Integer id, @RequestParam("bookName") String bookName,
72             @RequestParam("author") String author,
73             @RequestParam("publishDate") @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") Date publishDate) {
74         return bookService.updateBook(id, bookName, author, publishDate);
75     }
76 }

为了解决日期问题

 1 package com.wn.resp;
 2 
 3 public class BookResp {
 4     private Integer id;
 5 
 6     private String bookName;
 7 
 8     private String author;
 9 
10     private String publishDate;
11 
12     public Integer getId() {
13         return id;
14     }
15 
16     public void setId(Integer id) {
17         this.id = id;
18     }
19 
20     public String getBookName() {
21         return bookName;
22     }
23 
24     public void setBookName(String bookName) {
25         this.bookName = bookName == null ? null : bookName.trim();
26     }
27 
28     public String getAuthor() {
29         return author;
30     }
31 
32     public void setAuthor(String author) {
33         this.author = author == null ? null : author.trim();
34     }
35 
36     public String getPublishDate() {
37         return publishDate;
38     }
39 
40     public void setPublishDate(String publishDate) {
41         this.publishDate = publishDate;
42     }
43 }

五、浏览器或postman测试（举例用postman测试）

1、添加

成功会返回true

2、显示

成功返回json串：

1 {
2   "id": 3,
3   "bookName": "PE",
4   "author": "dawei",
5   "publishDate": "2014-11-08 11:11:11"
6 }

3、删除

成功返回true,另一种方法如下：

4、修改

查看全文

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原文地址：https://www.cnblogs.com/wangna----558169/p/6056596.html