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RESTful风格的SSM框架搭建
1 使用idea编辑工具，maven项目构建工具搭建RESTful风格的java项目
2 进行项目配置
2.1 pom文件依赖
1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 3 <modelVersion>4.0.0</modelVersion> 4 <groupId>com.huitong</groupId> 5 <artifactId>friend</artifactId> 6 <packaging>war</packaging> 7 <version>1.0-SNAPSHOT</version> 8 <name>friend Maven Webapp</name> 9 <url>http://maven.apache.org</url> 10 11 12 <properties> 13 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 14 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 15 <!-- spring版本号 --> 16 <spring.version>4.3.0.RELEASE</spring.version> 17 18 <!-- mybatis版本号 --> 19 <mybatis.version>3.4.4</mybatis.version> 20 21 <!-- mysql驱动版本号 --> 22 <mysql-driver.version>5.1.40</mysql-driver.version> 23 24 <!-- log4j日志包版本号 --> 25 <log4j.version>2.7</log4j.version> 26 <commons-logging.version>1.2</commons-logging.version> 27 28 <!-- 对象转 jackson 版本号 --> 29 <jackson.version>2.8.5</jackson.version> 30 31 <!--spring security version--> 32 <spring.security.version>4.2.3.RELEASE</spring.security.version> 33 34 <mysql.user>root</mysql.user> 35 <mysql.password>123456</mysql.password> 36 37 38 </properties> 39 <dependencies> 40 <dependency> 41 <groupId>junit</groupId> 42 <artifactId>junit</artifactId> 43 <version>4.11</version> 44 <scope>test</scope> 45 </dependency> 46 47 48 <!-- 添加jstl依赖 --> 49 <dependency> 50 <groupId>jstl</groupId> 51 <artifactId>jstl</artifactId> 52 <version>1.2</version> 53 </dependency> 54 55 <!-- javaee 7.0 --> 56 <!-- https://mvnrepository.com/artifact/javax/javaee-api --> 57 <dependency> 58 <groupId>javax</groupId> 59 <artifactId>javaee-api</artifactId> 60 <version>7.0</version> 61 </dependency> 62 63 64 <!-- ######## spring mvc 依赖包 start ################################--> 65 <!-- https://mvnrepository.com/artifact/org.springframework/spring-web --> 66 <dependency> 67 <groupId>org.springframework</groupId> 68 <artifactId>spring-web</artifactId> 69 <version>${spring.version}</version> 70 </dependency> 71 72 <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> 73 <dependency> 74 <groupId>org.springframework</groupId> 75 <artifactId>spring-webmvc</artifactId> 76 <version>${spring.version}</version> 77 </dependency> 78 <!-- ######## spring mvc 依赖包 end ################################--> 79 80 <!-- ######## spring core 依赖包 start ################################--> 81 <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans --> 82 <dependency> 83 <groupId>org.springframework</groupId> 84 <artifactId>spring-beans</artifactId> 85 <version>${spring.version}</version> 86 </dependency> 87 88 <!-- https://mvnrepository.com/artifact/org.springframework/spring-context --> 89 <dependency> 90 <groupId>org.springframework</groupId> 91 <artifactId>spring-context</artifactId> 92 <version>${spring.version}</version> 93 </dependency> 94 95 <!-- https://mvnrepository.com/artifact/org.springframework/spring-core --> 96 <dependency> 97 <groupId>org.springframework</groupId> 98 <artifactId>spring-core</artifactId> 99 <version>${spring.version}</version> 100 </dependency> 101 <!-- ######## spring core 依赖包 end ################################--> 102 103 <!-- ######## mybatis core 依赖包 start ################################--> 104 <!-- https://mvnrepository.com/artifact/org.ow2.asm/asm --> 105 <dependency> 106 <groupId>org.ow2.asm</groupId> 107 <artifactId>asm</artifactId> 108 <version>5.2</version> 109 </dependency> 110 111 <!-- https://mvnrepository.com/artifact/cglib/cglib --> 112 <dependency> 113 <groupId>cglib</groupId> 114 <artifactId>cglib</artifactId> 115 <version>3.2.5</version> 116 </dependency> 117 118 <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> 119 <dependency> 120 <groupId>org.mybatis</groupId> 121 <artifactId>mybatis</artifactId> 122 <version>${mybatis.version}</version> 123 </dependency> 124 <!-- ######## mybatis core 依赖包 end ################################--> 125 126 <!-- ######## mybatis spring 依赖包 start ################################--> 127 <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> 128 <dependency> 129 <groupId>org.mybatis</groupId> 130 <artifactId>mybatis-spring</artifactId> 131 <version>1.3.1</version> 132 </dependency> 133 <!-- ######## mybatis spring 依赖包 end ################################--> 134 135 136 <!-- ######## DBconnector 依赖包 start ################################--> 137 <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> 138 <dependency> 139 <groupId>mysql</groupId> 140 <artifactId>mysql-connector-java</artifactId> 141 <version>${mysql-driver.version}</version> 142 </dependency> 143 144 <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 --> 145 <dependency> 146 <groupId>com.mchange</groupId> 147 <artifactId>c3p0</artifactId> 148 <version>0.9.5.2</version> 149 </dependency> 150 <!-- ######## DBconnector 依赖包 end ################################--> 151 152 <!-- ######## translation 依赖包 start ################################--> 153 <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> 154 <dependency> 155 <groupId>org.springframework</groupId> 156 <artifactId>spring-jdbc</artifactId> 157 <version>${spring.version}</version> 158 </dependency> 159 160 <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx --> 161 <dependency> 162 <groupId>org.springframework</groupId> 163 <artifactId>spring-tx</artifactId> 164 <version>${spring.version}</version> 165 </dependency> 166 <!-- ######## translation 依赖包 end ################################--> 167 168 <!-- ######## AOP 依赖包 start ################################--> 169 <!-- https://mvnrepository.com/artifact/aopalliance/aopalliance --> 170 <dependency> 171 <groupId>aopalliance</groupId> 172 <artifactId>aopalliance</artifactId> 173 <version>1.0</version> 174 </dependency> 175 176 <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt --> 177 <dependency> 178 <groupId>org.aspectj</groupId> 179 <artifactId>aspectjrt</artifactId> 180 <version>1.8.10</version> 181 </dependency> 182 183 <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver --> 184 <dependency> 185 <groupId>org.aspectj</groupId> 186 <artifactId>aspectjweaver</artifactId> 187 <version>1.8.10</version> 188 </dependency> 189 190 <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop --> 191 <dependency> 192 <groupId>org.springframework</groupId> 193 <artifactId>spring-aop</artifactId> 194 <version>${spring.version}</version> 195 </dependency> 196 <!-- ######## AOP 依赖包 end ################################--> 197 198 199 <!-- ######## json 依赖包 start ################################--> 200 <dependency> 201 <groupId>com.fasterxml.jackson.core</groupId> 202 <artifactId>jackson-core</artifactId> 203 <version>${jackson.version}</version> 204 </dependency> 205 <dependency> 206 <groupId>com.fasterxml.jackson.core</groupId> 207 <artifactId>jackson-databind</artifactId> 208 <version>${jackson.version}</version> 209 </dependency> 210 <dependency> 211 <groupId>com.fasterxml.jackson.core</groupId> 212 <artifactId>jackson-annotations</artifactId> 213 <version>${jackson.version}</version> 214 </dependency> 215 <!-- ######## json 依赖包 end ################################--> 216 217 218 <dependency> 219 <groupId>commons-fileupload</groupId> 220 <artifactId>commons-fileupload</artifactId> 221 <version>1.3.3</version> 222 </dependency> 223 224 225 <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging --> 226 <dependency> 227 <groupId>commons-logging</groupId> 228 <artifactId>commons-logging</artifactId> 229 <version>${commons-logging.version}</version> 230 </dependency> 231 232 <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core --> 233 <dependency> 234 <groupId>org.apache.logging.log4j</groupId> 235 <artifactId>log4j-core</artifactId> 236 <version>${log4j.version}</version> 237 </dependency> 238 239 <dependency> 240 <groupId>org.springframework.security</groupId> 241 <artifactId>spring-security-web</artifactId> 242 <version>4.2.3.RELEASE</version> 243 </dependency> 244 245 </dependencies> 246 247 248 <build> 249 <finalName>friend</finalName> 250 <resources> 251 <resource> 252 <directory>src/main/resources</directory> 253 <filtering>true</filtering> 254 <includes> 255 <include>**/*.xml</include> 256 </includes> 257 </resource> 258 259 <resource> 260 <directory>src/main/resources</directory> 261 <filtering>true</filtering> 262 <includes> 263 <include>**/*.properties</include> 264 </includes> 265 </resource> 266 267 <resource> 268 <directory>src/main/resources</directory> 269 <excludes> 270 <exclude>**/*.properties</exclude> 271 </excludes> 272 </resource> 273 274 <resource> 275 <directory>src/main/java</directory> 276 <excludes> 277 <exclude>**/*.java</exclude> 278 </excludes> 279 </resource> 280 281 282 </resources> 283 </build> 284 </project>
2.2 数据库配置 spring-db.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"> <!--数据源配置--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value=http://www.mamicode.com/"com.mysql.jdbc.Driver"/> <property name="jdbcUrl" value=http://www.mamicode.com/"jdbc:mysql:///day11?useSSL=true" /> <property name="user" value=http://www.mamicode.com/"${mysql.user}" /> <property name="password" value=http://www.mamicode.com/"${mysql.password}" /> <property name="acquireIncrement" value=http://www.mamicode.com/"2" /> <property name="maxPoolSize" value=http://www.mamicode.com/"20" /> <property name="maxIdleTime" value=http://www.mamicode.com/"1000" /> </bean> <!--SqlSessionFactoryBean 配置--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value=http://www.mamicode.com/"classpath:mybatis-config.xml"></property> </bean> <!-- SqlSessionTemplate 配置 --> <bean id="sessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sqlSessionFactory"/> </bean> <!-- MapperScannerConfigurer 配置 --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value=http://www.mamicode.com/"com.huitong"/> <property name="sqlSessionFactoryBeanName" value=http://www.mamicode.com/"sqlSessionFactory"/> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/> </beans>
2.3 springMVC配置文件，springMVC.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <!-- 注解驱动 --> <mvc:annotation-driven > <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value=http://www.mamicode.com/"UTF-8"/> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- 扫描包 --> <context:component-scan base-package="com.huitong" /> <!-- 对静态资源文件的访问 不支持访问WEB-INF目录 --> <mvc:default-servlet-handler /> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value=http://www.mamicode.com/"utf-8"/> </bean> </beans>
2.4 mybatis配置文件
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!--任意环境，数据源和 MyBatis 的事务管理器都会被 忽略 。--> <!--通常这会是 <settings> 或 <typeAliases> 的部分。--> <settings> <!-- Globally enables or disables any caches configured in any mapper under this configuration --> <setting name="cacheEnabled" value=http://www.mamicode.com/"false"/> <!--<setting name="logImpl" value=http://www.mamicode.com/"STDOUT_LOGGING" />--> </settings> </configuration>
2.5 spring的配置，将所有配置进行整合
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!--任意环境，数据源和 MyBatis 的事务管理器都会被 忽略 。--> <!--通常这会是 <settings> 或 <typeAliases> 的部分。--> <settings> <!-- Globally enables or disables any caches configured in any mapper under this configuration --> <setting name="cacheEnabled" value=http://www.mamicode.com/"false"/> <!--<setting name="logImpl" value=http://www.mamicode.com/"STDOUT_LOGGING" />--> </settings> </configuration>
2.6 web.xml配置文件
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Archetype Created Web Application</display-name> <!-- 指定 spring 的配置文件，不然会报错找不到applicationContext.xml 文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <!--解决表单put请求--> <filter> <filter-name>httpPutFormContentFilter</filter-name> <filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <servlet-name>dispatcherServlet</servlet-name> </filter-mapping> <filter-mapping> <filter-name>httpPutFormContentFilter</filter-name> <servlet-name>dispatcherServlet</servlet-name> </filter-mapping> <!-- 方便获取ApplicationContext --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> </web-app>
至此，所有配置文件已经配置完毕。我的项目结构如下图
3 关键类
3.1 实体类Student
1 public class Student { 2 3 private String id; 4 private String name; 5 private Integer age; 6 private String gender; 7 private Date birthday; 8 9 public Student() { 10 } 11 12 13 public Student( 14 String id, 15 String name, 16 Integer age, 17 String gender, 18 Date birthday) { 19 this.id = id; 20 this.name = name; 21 this.age = age; 22 this.gender = gender; 23 this.birthday = birthday; 24 } 25 26 public String getId() { 27 return id; 28 } 29 30 public void setId(String id) { 31 this.id = id; 32 } 33 34 public String getName() { 35 return name; 36 } 37 38 public void setName(String name) { 39 this.name = name; 40 } 41 42 public Integer getAge() { 43 return age; 44 } 45 46 public void setAge(Integer age) { 47 this.age = age; 48 } 49 50 public String getGender() { 51 return gender; 52 } 53 54 public void setGender(String gender) { 55 this.gender = gender; 56 } 57 58 public Date getBirthday() { 59 return birthday; 60 } 61 62 public void setBirthday(Date birthday) { 63 this.birthday = birthday; 64 } 65 }
3.2 StudentDao接口
1 @Repository 2 public interface StudentDao { 3 /** 4 * 添加学生 5 * @param student 学生信息 6 */ 7 void insert(Student student); 8 9 /** 10 * 查询学生信息 11 * @param id 学生ID 12 * @return 查询到的学生信息 13 */ 14 Student queryStudentById(@Param("id") String id); 15 16 String getNameById(@Param("id") String id); 17 }
3.3 StudentDao.xml 映射配置
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 <mapper namespace="com.huitong.adaptor.persistence.mybatis.StudentDao"> 6 7 <insert id="insert" parameterType="com.huitong.entity.Student"> 8 INSERT INTO student(id, name, age, gender, birthday) 9 VALUES(#{id},#{name},#{age},#{gender},#{birthday}) 10 </insert> 11 12 <select id="queryStudentById" parameterType="string" resultType="com.huitong.entity.Student"> 13 SELECT * 14 FROM student 15 WHERE id=#{id} 16 </select> 17 18 <select id="getNameById" resultType="string"> 19 SELECT NAME 20 FROM student 21 WHERE id=#{id} 22 </select> 23 24 </mapper>
4 问题小结
4.1 报错找不到applicationContext.xml 配置文件
IOException parsing XML document from ServletContext resource [/WEB-INF/applicationContext.xml]; nested exception is java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/applicationContext.xml]
解决方案：查看博文 关于“Could not open ServletContext resource [/WEB-INF/applicationContext.xml]”解决方案
4.2 报错org.apache.ibatis.binding.BindingException: Invalid bound statement (not found):
解决方案
一般的原因是Mapper interface和xml文件的定义对应不上，需要检查包名，namespace，函数名称等能否对应上，需要比较细致的对比，
按以下步骤一一执行：
1：检查xml文件所在的package名称是否和interface对应的package名称一一对应
2：检查xml文件的namespace是否和xml文件的package名称一一对应
3：检查函数名称能否对应
但是博主在尝试以上方案之后仍然报错，在我查看了发布之后的源代码之后，发现*Mapper.xml文件并没有发布到目标文件中。我是使用maven 进行项目构建。修改pom.xmml文件，
在<build>子项中添加
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*.properties</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.properties</exclude>
</excludes>
</resource>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
4.3 在请求中，获取string字符串中文乱码问题
解决方案，修改 springMVC.xml 配置文件，参考博客 SpringMVC源码总结（四）由StringHttpMessageConverter引出的客户端服务器端之间的乱码过程分析
<mvc:annotation-driven >
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value=http://www.mamicode.com/"UTF-8"/>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
4.4 处理返回类型是日期类型 Date
解决方案，修改 springMVC.xml 配置文件
<mvc:annotation-driven >
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value=http://www.mamicode.com/"UTF-8"/>
</bean>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper">
<bean class="com.fasterxml.jackson.databind.ObjectMapper">
<property name="dateFormat">
<bean class="java.text.SimpleDateFormat">
<constructor-arg type="java.lang.String" value=http://www.mamicode.com/"yyyy-MM-dd HH:mm:ss"/>
</bean>
</property>
</bean>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
RESTful风格的SSM框架搭建
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