索引：
参看代码 GitHub：
一、引入必要类库
spring-context
spring-context-support
spring-webmvc：引入该包后，maven 会自动解析依赖，引入 spring-web 等包。
1.solution/pom.xml
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/xsd/maven-4.0.0.xsd"> 3 <modelVersion>4.0.0</modelVersion> 4 5 <groupId>lm.solution</groupId> 6 <artifactId>solution</artifactId> 7 <version>1.0-SNAPSHOT</version> 8 <modules> 9 <module>webapi</module> 10 <module>web</module> 11 <module>common</module> 12 <module>service</module> 13 <module>mapper</module> 14 <module>pojo</module> 15 <module>console</module> 16 <module>webservice</module> 17 </modules> 18 <packaging>pom</packaging> 19 20 <name>solution</name> 21 <url>http://maven.apache.org</url> 22 23 <properties> 24 <!--编译字符集--> 25 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 26 <!-- spring --> 27 <spring.version>4.3.13.RELEASE</spring.version> 28 <!-- log4j --> 29 <slf4j.version>1.7.7</slf4j.version> 30 <log4j.version>1.2.17</log4j.version> 31 <!-- jackson --> 32 <jackson.version>2.9.4</jackson.version> 33 <!-- junit --> 34 <junit.version>4.12</junit.version> 35 <!-- aspectj --> 36 <aspectj.version>1.8.13</aspectj.version> 37 <!-- cglib --> 38 <cglib.version>3.1</cglib.version> 39 <!-- mybatis --> 40 <mybatis.version>3.4.5</mybatis.version> 41 <!-- mybatis-spring --> 42 <mybatisSpring.version>1.3.1</mybatisSpring.version> 43 <!--mysql-connector--> 44 <mysql.version>5.1.34</mysql.version> 45 <!--druid--> 46 <druid.version>1.0.5</druid.version> 47 <!--javax.servlet--> 48 <javaxServlet.version>3.0.1</javaxServlet.version> 49 <!--jsp-api--> 50 <jspApi.version>2.2</jspApi.version> 51 <!--jstl--> 52 <jstl.version>1.2</jstl.version> 53 <!--json-lib--> 54 <jsonLib.version>2.1</jsonLib.version> 55 <!--jackson old--> 56 <jacksonOld.version>1.9.13</jacksonOld.version> 57 <!--dom4j--> 58 <dom4j.version>1.6.1</dom4j.version> 59 <!--ehcache core--> 60 <ehcacheCore.version>2.6.9</ehcacheCore.version> 61 <!--ehcache web--> 62 <ehcacheWeb.version>2.0.4</ehcacheWeb.version> 63 <!--commons-fileupload--> 64 <commonsFileupload.version>1.3.1</commonsFileupload.version> 65 <!--commons-io--> 66 <commonsIo.version>2.4</commonsIo.version> 67 <!--commons-codec--> 68 <commonsCodec.version>1.9</commonsCodec.version> 69 <!--commons-collections4--> 70 <commonsCollections4.version>4.0</commonsCollections4.version> 71 <!--commons-beanutils--> 72 <commonsBeanutils.version>1.7.0</commonsBeanutils.version> 73 <!--freemarker--> 74 <freemarker.version>2.3.19</freemarker.version> 75 <!-- poi poi-ooxml --> 76 <poi.version>3.9</poi.version> 77 <!--org.apache.httpcomponents--> 78 <httpcore.version>4.4.8</httpcore.version> 79 <httpclient.version>4.5.4</httpclient.version> 80 <!-- jaxws-rt --> 81 <jaxwsRt.version>2.3.0</jaxwsRt.version> 82 <!-- jedis --> 83 <jedis.version>2.9.0</jedis.version> 84 <!-- rabbitmq --> 85 <amqpClient.version>5.1.2</amqpClient.version> 86 <!--fastjson--> 87 <fastjson.version>1.2.46</fastjson.version> 88 <!-- jsr250 --> 89 <jsr250.version>1.0</jsr250.version> 90 </properties> 91 92 <dependencies> 93 <!--单元测试依赖 --> 94 <dependency> 95 <groupId>junit</groupId> 96 <artifactId>junit</artifactId> 97 <version>RELEASE</version> 98 <!--test 说明这个包的存活是在test周期，也就是发布时将不包含这个jar包--> 99 <scope>test</scope> 100 </dependency> 101 <!--spring单元测试依赖 --> 102 <dependency> 103 <groupId>org.springframework</groupId> 104 <artifactId>spring-test</artifactId> 105 <version>${spring.version}</version> 106 <scope>test</scope> 107 </dependency> 108 <!-- spring --> 109 <dependency> 110 <groupId>org.springframework</groupId> 111 <!-- 因依赖 会自动引入 spring-aop spring-beans spring-core spring-expression 四个包 --> 112 <artifactId>spring-context</artifactId> 113 <version>${spring.version}</version> 114 </dependency> 115 <dependency> 116 <groupId>org.springframework</groupId> 117 <artifactId>spring-context-support</artifactId> 118 <version>${spring.version}</version> 119 </dependency> 120 <dependency> 121 <groupId>org.springframework</groupId> 122 <artifactId>spring-aspects</artifactId> 123 <version>${spring.version}</version> 124 </dependency> 125 <dependency> 126 <groupId>org.springframework</groupId> 127 <artifactId>spring-tx</artifactId> 128 <version>${spring.version}</version> 129 </dependency> 130 <dependency> 131 <groupId>org.springframework</groupId> 132 <artifactId>spring-jdbc</artifactId> 133 <version>${spring.version}</version> 134 </dependency> 135 <!-- aspectj AOP --> 136 <dependency> 137 <groupId>org.aspectj</groupId> 138 <artifactId>aspectjrt</artifactId> 139 <version>${aspectj.version}</version> 140 </dependency> 141 <dependency> 142 <groupId>org.aspectj</groupId> 143 <artifactId>aspectjweaver</artifactId> 144 <version>${aspectj.version}</version> 145 </dependency> 146 <!-- 映入JSON jackson --> 147 <dependency> 148 <groupId>com.fasterxml.jackson.core</groupId> 149 <artifactId>jackson-annotations</artifactId> 150 <version>${jackson.version}</version> 151 </dependency> 152 <dependency> 153 <groupId>com.fasterxml.jackson.core</groupId> 154 <artifactId>jackson-databind</artifactId> 155 <version>${jackson.version}</version> 156 </dependency> 157 <dependency> 158 <groupId>com.fasterxml.jackson.core</groupId> 159 <artifactId>jackson-core</artifactId> 160 <version>${jackson.version}</version> 161 </dependency> 162 <dependency> 163 <groupId>com.fasterxml.jackson.dataformat</groupId> 164 <artifactId>jackson-dataformat-xml</artifactId> 165 <version>${jackson.version}</version> 166 </dependency> 167 <!-- 日志文件管理包 --> 168 <dependency> 169 <groupId>log4j</groupId> 170 <artifactId>log4j</artifactId> 171 <version>${log4j.version}</version> 172 </dependency> 173 <dependency> 174 <groupId>org.slf4j</groupId> 175 <artifactId>slf4j-api</artifactId> 176 <version>${slf4j.version}</version> 177 </dependency> 178 <dependency> 179 <groupId>org.slf4j</groupId> 180 <artifactId>slf4j-log4j12</artifactId> 181 <version>${slf4j.version}</version> 182 </dependency> 183 </dependencies> 184 185 <dependencyManagement> 186 <dependencies> 187 <!--spring web--> 188 <dependency> 189 <groupId>org.springframework</groupId> 190 <artifactId>spring-web</artifactId> 191 <version>${spring.version}</version> 192 </dependency> 193 <dependency> 194 <groupId>org.springframework</groupId> 195 <artifactId>spring-webmvc</artifactId> 196 <version>${spring.version}</version> 197 </dependency> 198 <!--cglib--> 199 <dependency> 200 <groupId>cglib</groupId> 201 <artifactId>cglib</artifactId> 202 <version>${cglib.version}</version> 203 </dependency> 204 <!-- mybatis --> 205 <dependency> 206 <groupId>org.mybatis</groupId> 207 <artifactId>mybatis</artifactId> 208 <version>${mybatis.version}</version> 209 </dependency> 210 <dependency> 211 <groupId>org.mybatis</groupId> 212 <artifactId>mybatis-spring</artifactId> 213 <version>${mybatisSpring.version}</version> 214 </dependency> 215 <!-- Mysql数据库驱动包 --> 216 <dependency> 217 <groupId>mysql</groupId> 218 <artifactId>mysql-connector-java</artifactId> 219 <version>${mysql.version}</version> 220 </dependency> 221 <!-- connection pool --> 222 <dependency> 223 <groupId>com.alibaba</groupId> 224 <artifactId>druid</artifactId> 225 <version>${druid.version}</version> 226 <!--<scope>runtime</scope>--> 227 </dependency> 228 <!--servlet--> 229 <dependency> 230 <groupId>javax.servlet</groupId> 231 <artifactId>javax.servlet-api</artifactId> 232 <version>${javaxServlet.version}</version> 233 <scope>provided</scope> 234 </dependency> 235 <dependency> 236 <groupId>javax.servlet.jsp</groupId> 237 <artifactId>jsp-api</artifactId> 238 <version>${jspApi.version}</version> 239 <scope>provided</scope> 240 </dependency> 241 <dependency> 242 <groupId>javax.servlet</groupId> 243 <artifactId>jstl</artifactId> 244 <version>${jstl.version}</version> 245 </dependency> 246 <!-- 映入JSON lib --> 247 <dependency> 248 <groupId>net.sf.json-lib</groupId> 249 <artifactId>json-lib</artifactId> 250 <version>${jsonLib.version}</version> 251 <classifier>jdk15</classifier> 252 </dependency> 253 <!-- jackson old --> 254 <dependency> 255 <groupId>org.codehaus.jackson</groupId> 256 <artifactId>jackson-core-asl</artifactId> 257 <version>${jacksonOld.version}</version> 258 </dependency> 259 <dependency> 260 <groupId>org.codehaus.jackson</groupId> 261 <artifactId>jackson-mapper-asl</artifactId> 262 <version>${jacksonOld.version}</version> 263 </dependency> 264 <!-- 用dom4j解析xml文件 --> 265 <dependency> 266 <groupId>dom4j</groupId> 267 <artifactId>dom4j</artifactId> 268 <version>${dom4j.version}</version> 269 </dependency> 270 <!-- ehcache --> 271 <dependency> 272 <groupId>net.sf.ehcache</groupId> 273 <artifactId>ehcache-core</artifactId> 274 <version>${ehcacheCore.version}</version> 275 </dependency> 276 <dependency> 277 <groupId>net.sf.ehcache</groupId> 278 <artifactId>ehcache-web</artifactId> 279 <version>${ehcacheWeb.version}</version> 280 </dependency> 281 <!-- 上传组件包 --> 282 <dependency> 283 <groupId>commons-fileupload</groupId> 284 <artifactId>commons-fileupload</artifactId> 285 <version>${commonsFileupload.version}</version> 286 </dependency> 287 <dependency> 288 <groupId>commons-io</groupId> 289 <artifactId>commons-io</artifactId> 290 <version>${commonsIo.version}</version> 291 </dependency> 292 <dependency> 293 <groupId>commons-codec</groupId> 294 <artifactId>commons-codec</artifactId> 295 <version>${commonsCodec.version}</version> 296 </dependency> 297 <dependency> 298 <groupId>org.apache.commons</groupId> 299 <artifactId>commons-collections4</artifactId> 300 <version>${commonsCollections4.version}</version> 301 </dependency> 302 <dependency> 303 <groupId>org.apache.commons</groupId> 304 <artifactId>commons-lang3</artifactId> 305 <version>3.3.2</version> 306 </dependency> 307 <!-- commons-beanutils --> 308 <dependency> 309 <groupId>commons-beanutils</groupId> 310 <artifactId>commons-beanutils</artifactId> 311 <version>${commonsBeanutils.version}</version> 312 <exclusions> 313 <exclusion> 314 <groupId>commons-logging</groupId> 315 <artifactId>commons-logging</artifactId> 316 </exclusion> 317 </exclusions> 318 </dependency> 319 <!-- freemarker --> 320 <dependency> 321 <groupId>org.freemarker</groupId> 322 <artifactId>freemarker</artifactId> 323 <version>${freemarker.version}</version> 324 </dependency> 325 <!-- poi --> 326 <dependency> 327 <groupId>org.apache.poi</groupId> 328 <artifactId>poi</artifactId> 329 <version>${poi.version}</version> 330 </dependency> 331 <dependency> 332 <groupId>org.apache.poi</groupId> 333 <artifactId>poi-ooxml</artifactId> 334 <version>${poi.version}</version> 335 </dependency> 336 <!-- org.apache.httpcomponents --> 337 <dependency> 338 <groupId>org.apache.httpcomponents</groupId> 339 <artifactId>httpcore</artifactId> 340 <version>${httpcore.version}</version> 341 </dependency> 342 <dependency> 343 <groupId>org.apache.httpcomponents</groupId> 344 <artifactId>httpclient</artifactId> 345 <version>${httpclient.version}</version> 346 </dependency> 347 <!-- com.sun.xml.ws/jaxws-rt --> 348 <dependency> 349 <groupId>com.sun.xml.ws</groupId> 350 <artifactId>jaxws-rt</artifactId> 351 <version>${jaxwsRt.version}</version> 352 </dependency> 353 <!-- redis.clients/jedis --> 354 <dependency> 355 <groupId>redis.clients</groupId> 356 <artifactId>jedis</artifactId> 357 <version>${jedis.version}</version> 358 </dependency> 359 <!-- com.rabbitmq/amqp-client --> 360 <dependency> 361 <groupId>com.rabbitmq</groupId> 362 <artifactId>amqp-client</artifactId> 363 <version>${amqpClient.version}</version> 364 </dependency> 365 <!-- com.alibaba/fastjson --> 366 <dependency> 367 <groupId>com.alibaba</groupId> 368 <artifactId>fastjson</artifactId> 369 <version>${fastjson.version}</version> 370 </dependency> 371 <!-- javax.annotation/jsr250-api --> 372 <dependency> 373 <groupId>javax.annotation</groupId> 374 <artifactId>jsr250-api</artifactId> 375 <version>${jsr250.version}</version> 376 </dependency> 377 </dependencies> 378 </dependencyManagement> 379 380 <build> 381 <plugins> 382 <!-- java编译插件 --> 383 <plugin> 384 <groupId>org.apache.maven.plugins</groupId> 385 <artifactId>maven-compiler-plugin</artifactId> 386 <version>3.2</version> 387 <configuration> 388 <source>1.8</source> 389 <target>1.8</target> 390 <encoding>UTF-8</encoding> 391 </configuration> 392 </plugin> 393 </plugins> 394 395 <pluginManagement> 396 <plugins> 397 <!-- 配置Tomcat插件 --> 398 <plugin> 399 <groupId>org.apache.tomcat.maven</groupId> 400 <artifactId>tomcat8-maven-plugin</artifactId> 401 <version>3.0-r1756463</version> 402 </plugin> 403 </plugins> 404 </pluginManagement> 405 </build> 406 407 </project>
2.web/pom.xml
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 <parent> 4 <artifactId>solution</artifactId> 5 <groupId>lm.solution</groupId> 6 <version>1.0-SNAPSHOT</version> 7 </parent> 8 <modelVersion>4.0.0</modelVersion> 9 <groupId>lm.solution</groupId> 10 <artifactId>web</artifactId> 11 <packaging>war</packaging> 12 <version>1.0-SNAPSHOT</version> 13 <name>web Maven Webapp</name> 14 <url>http://maven.apache.org</url> 15 <dependencies> 16 <!--Module--> 17 <dependency> 18 <groupId>lm.solution</groupId> 19 <artifactId>service</artifactId> 20 <version>1.0-SNAPSHOT</version> 21 </dependency> 22 <dependency> 23 <groupId>lm.solution</groupId> 24 <artifactId>common</artifactId> 25 <version>1.0-SNAPSHOT</version> 26 </dependency> 27 28 <!--Libary--> 29 <!--spring mvc--> 30 <dependency> 31 <groupId>org.springframework</groupId> 32 <artifactId>spring-webmvc</artifactId> 33 </dependency> 34 <!--cglib--> 35 <dependency> 36 <groupId>cglib</groupId> 37 <artifactId>cglib</artifactId> 38 </dependency> 39 <!-- mybatis核心包 --> 40 <dependency> 41 <groupId>org.mybatis</groupId> 42 <artifactId>mybatis</artifactId> 43 </dependency> 44 <!--mybatis spring 插件 --> 45 <dependency> 46 <groupId>org.mybatis</groupId> 47 <artifactId>mybatis-spring</artifactId> 48 </dependency> 49 <!-- Mysql数据库驱动包 --> 50 <dependency> 51 <groupId>mysql</groupId> 52 <artifactId>mysql-connector-java</artifactId> 53 </dependency> 54 <!-- connection pool --> 55 <dependency> 56 <groupId>com.alibaba</groupId> 57 <artifactId>druid</artifactId> 58 <!--<scope>runtime</scope>--> 59 </dependency> 60 <!--servlet--> 61 <dependency> 62 <groupId>javax.servlet</groupId> 63 <artifactId>javax.servlet-api</artifactId> 64 <scope>provided</scope> 65 </dependency> 66 <dependency> 67 <groupId>javax.servlet.jsp</groupId> 68 <artifactId>jsp-api</artifactId> 69 <scope>provided</scope> 70 </dependency> 71 <dependency> 72 <groupId>javax.servlet</groupId> 73 <artifactId>jstl</artifactId> 74 </dependency> 75 <!-- 映入JSON lib --> 76 <dependency> 77 <groupId>net.sf.json-lib</groupId> 78 <artifactId>json-lib</artifactId> 79 <classifier>jdk15</classifier> 80 </dependency> 81 <!-- 用dom4j解析xml文件 --> 82 <dependency> 83 <groupId>dom4j</groupId> 84 <artifactId>dom4j</artifactId> 85 </dependency> 86 <!-- ehcache --> 87 <dependency> 88 <groupId>net.sf.ehcache</groupId> 89 <artifactId>ehcache-core</artifactId> 90 </dependency> 91 <dependency> 92 <groupId>net.sf.ehcache</groupId> 93 <artifactId>ehcache-web</artifactId> 94 </dependency> 95 <!-- 上传组件包 --> 96 <dependency> 97 <groupId>commons-fileupload</groupId> 98 <artifactId>commons-fileupload</artifactId> 99 </dependency> 100 <dependency> 101 <groupId>commons-io</groupId> 102 <artifactId>commons-io</artifactId> 103 </dependency> 104 <!-- common others --> 105 <dependency> 106 <groupId>commons-codec</groupId> 107 <artifactId>commons-codec</artifactId> 108 </dependency> 109 <dependency> 110 <groupId>org.apache.commons</groupId> 111 <artifactId>commons-collections4</artifactId> 112 </dependency> 113 <dependency> 114 <groupId>org.apache.commons</groupId> 115 <artifactId>commons-lang3</artifactId> 116 </dependency> 117 <!-- commons-beanutils --> 118 <dependency> 119 <groupId>commons-beanutils</groupId> 120 <artifactId>commons-beanutils</artifactId> 121 <exclusions> 122 <exclusion> 123 <groupId>commons-logging</groupId> 124 <artifactId>commons-logging</artifactId> 125 </exclusion> 126 </exclusions> 127 </dependency> 128 <!-- freemarker --> 129 <dependency> 130 <groupId>org.freemarker</groupId> 131 <artifactId>freemarker</artifactId> 132 </dependency> 133 <!-- org.apache.httpcomponents --> 134 <dependency> 135 <groupId>org.apache.httpcomponents</groupId> 136 <artifactId>httpcore</artifactId> 137 </dependency> 138 <dependency> 139 <groupId>org.apache.httpcomponents</groupId> 140 <artifactId>httpclient</artifactId> 141 </dependency> 142 <!-- redis.clients/jedis --> 143 <dependency> 144 <groupId>redis.clients</groupId> 145 <artifactId>jedis</artifactId> 146 </dependency> 147 <!-- com.rabbitmq/amqp-client --> 148 <dependency> 149 <groupId>com.rabbitmq</groupId> 150 <artifactId>amqp-client</artifactId> 151 </dependency> 152 <!-- com.alibaba/fastjson --> 153 <dependency> 154 <groupId>com.alibaba</groupId> 155 <artifactId>fastjson</artifactId> 156 </dependency> 157 </dependencies> 158 <build> 159 <finalName>web</finalName> 160 161 <plugins> 162 <plugin> 163 <groupId>org.apache.tomcat.maven</groupId> 164 <artifactId>tomcat8-maven-plugin</artifactId> 165 </plugin> 166 </plugins> 167 </build> 168 </project>
二、web 配置
在 java config 配置方式中，我们就不需要在 web.xml 中配置监听及servlet 等节点了，这里我们仍然使用 servlet 3.0 API 。
1.web.xml
1 <!DOCTYPE web-app PUBLIC 2 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 3 "http://java.sun.com/dtd/web-app_2_3.dtd" > 4 5 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 6 xmlns="http://java.sun.com/xml/ns/javaee" 7 xsi:schemaLocation=" 8 http://java.sun.com/xml/ns/javaee 9 http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 10 id="WebApp_ID" 11 version="3.0"> 12 </web-app>
三、用 JavaConfig 替代 web.xml 中 servlet 配置及监听配置
public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer：
WebInitializer继承关系链：
WebInitializer -->AbstractAnnotationConfigDispatcherServletInitializer -->AbstractDispatcherServletInitializer -->
AbstractContextLoaderInitializer -->WebApplicationInitializer
实现 WebApplicationInitializer 接口，就等同于 web.xml 配置
@Override public void onStartup ：
web.xml 核心的相关配置，可再此方法中重写 自定义的配置 ，如：<filter> 可用 FilterRegistration.Dynamic encodingFilter 此种方式来配置。
@Override protected Class<?>[] getRootConfigClasses ：
重写此方法，以替代 spring-context.xml ,在这个方法中返回的 类类型数组 可配置上下文中需要的 bean ，如数据库，缓存 等等。
@Override protected Class<?>[] getServletConfigClasses：
重写此方法，以替代 spring-mvc.xml ，在这个方法中返回的类型数组 可配置 spring 中 视图解析器，http message converter 等框架需要的 bean。
@Override protected String[] getServletMappings ：
重写此方法，就相当于 <servlet-mapping> 节点等同的功能，可指定 站点根路径。
public class WebConfig extends WebMvcConfigurerAdapter ：
@EnableWebMvc：注解会开启一些默认配置，如：ViewResolver MessageConverter 等,若无此注解，重写 WebMvcConfigurerAdapter 方法无效。
@ComponentScan：会扫描指定包中的类，根据注解，将特定类初始化为 上下文中需要的 bean 。
@Override public void addViewControllers ：
重写 addViewControllers 简化页面快捷转向，这样就可以不用配置 Controller 了（就是那些仅返回一个页面路径的简单 controller ）。
@Bean public InternalResourceViewResolver viewResolver ：
配置JSP视图解析器
@Bean public MultipartResolver multipartResolver ：
配置springMVC处理上传文件的信息
@Override public void addResourceHandlers ：
配置静态文件处理
1.WebInitializer.java
1 package lm.solution.web.config; 2 3 import lm.solution.web.config.configs.RootConfig; 4 import lm.solution.web.config.configs.WebConfig; 5 import org.springframework.web.filter.CharacterEncodingFilter; 6 import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer; 7 8 import javax.servlet.*; 9 10 /** 11 * WebInitializer继承关系链： 12 * WebInitializer --> 13 * AbstractAnnotationConfigDispatcherServletInitializer --> 14 * AbstractDispatcherServletInitializer --> 15 * AbstractContextLoaderInitializer --> 16 * WebApplicationInitializer 17 * 实现 WebApplicationInitializer 接口，就等同于 web.xml 配置 18 * */ 19 public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { 20 21 @Override 22 public void onStartup(ServletContext servletContext) 23 throws ServletException{ 24 25 /** 26 * super 中已设置 servlet.setLoadOnStartup(1) 27 * */ 28 super.onStartup(servletContext); 29 30 // 31 ServletRegistration servletRegistration =servletContext.getServletRegistration("dispatcher"); 32 33 // spring 字符过滤 34 FilterRegistration.Dynamic encodingFilter=servletContext.addFilter("encoding-filter",CharacterEncodingFilter.class); 35 encodingFilter.setInitParameter("encoding","UTF-8"); 36 encodingFilter.setInitParameter("forceEncoding","true"); 37 encodingFilter.setAsyncSupported(true); 38 encodingFilter.addMappingForUrlPatterns(null,true,"/*"); 39 40 41 } 42 43 // root配置类初始化 44 // 指定 Root WebApplicationContext 类，这个类必须@Configuration来注解，从而代替XML配置文件 45 @Override 46 protected Class<?>[] getRootConfigClasses() { 47 48 return new Class<?>[]{RootConfig.class}; 49 50 } 51 52 // web配置类初始化 53 // 指定 Servlet WebApplicationContext 类，这个类必须@Configuration来注解，从而代替XML配置文件 54 @Override 55 protected Class<?>[] getServletConfigClasses() { 56 57 return new Class<?>[]{WebConfig.class}; 58 59 } 60 61 // 映射根路径初始化 62 // 指定 Servlet mappings 63 @Override 64 protected String[] getServletMappings() { 65 66 return new String[]{"/"}; 67 68 } 69 70 @Override 71 protected Filter[] getServletFilters() { 72 73 return null; 74 75 } 76 77 @Override 78 protected void customizeRegistration(ServletRegistration.Dynamic registration){ 79 80 // 让404作为异常抛出 不使用tomcat默认的 81 registration.setInitParameter("throwExceptionIfNoHandlerFound","true"); 82 83 } 84 85 }
2.WebConfig.java
1 package lm.solution.web.config.configs; 2 3 import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter; 4 import lm.solution.common.web.messageconverter.CustomMessageConverter; 5 import lm.solution.web.config.beans.TimerInterceptor; 6 import org.springframework.context.annotation.Bean; 7 import org.springframework.context.annotation.ComponentScan; 8 import org.springframework.context.annotation.Configuration; 9 import org.springframework.http.MediaType; 10 import org.springframework.http.converter.HttpMessageConverter; 11 import org.springframework.web.multipart.MultipartResolver; 12 import org.springframework.web.multipart.commons.CommonsMultipartResolver; 13 import org.springframework.web.servlet.config.annotation.*; 14 import org.springframework.web.servlet.view.InternalResourceViewResolver; 15 import org.springframework.web.servlet.view.JstlView; 16 17 import java.util.ArrayList; 18 import java.util.List; 19 20 @Configuration 21 /** 22 * @EnableWebMvc 注解会开启一些默认配置，如：ViewResolver MessageConverter 等, 23 * 若无此注解，重写 WebMvcConfigurerAdapter 方法无效 24 * */ 25 @EnableWebMvc 26 @ComponentScan(value = { 27 "lm.solution.web", 28 "lm.solution.service.mysql", 29 "lm.solution.service.webtest" 30 }) 31 /** 32 * 继承 WebMvcConfigurerAdapter 类，重写其方法可对 spring mvc 进行配置 33 * */ 34 public class WebConfig extends WebMvcConfigurerAdapter { 35 36 // 重写 addViewControllers 简化页面快捷转向，这样就可以不用配置 Controller 了 37 @Override 38 public void addViewControllers(ViewControllerRegistry registry) { 39 40 registry.addViewController("/").setViewName("index"); 41 registry.addViewController("/error").setViewName("error/error"); 42 registry.addViewController("/excel").setViewName("excel/excel"); 43 // 文件上传下载 44 registry.addViewController("/upload").setViewName("fileupload/upload"); 45 registry.addViewController("/ImageValidateCodeLogin").setViewName("login/imageValidateCodeLogin"); 46 registry.addViewController("/restfulapi").setViewName("restful/user"); 47 registry.addViewController("/jaxwsri").setViewName("jaxwsri/wsri"); 48 registry.addViewController("/redis").setViewName("redis/jedis"); 49 registry.addViewController("/mybatisPage").setViewName("db/mybatis"); 50 registry.addViewController("/messageconverter").setViewName("httpmessageconverter/customconverter"); 51 registry.addViewController("/sse").setViewName("serverpushmessage/sse"); 52 53 } 54 55 // 配置JSP视图解析器 56 @Bean 57 public InternalResourceViewResolver viewResolver() { 58 InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); 59 /** 60 * views 在 /resources/ 下 61 * */ 62 // 前缀 63 viewResolver.setPrefix("/WEB-INF/classes/views/"); 64 // 后缀 65 viewResolver.setSuffix(".jsp"); 66 viewResolver.setViewClass(JstlView.class); 67 viewResolver.setContentType("text/html"); 68 // 可以在JSP页面中通过${}访问beans 69 viewResolver.setExposeContextBeansAsAttributes(true); 70 return viewResolver; 71 } 72 73 // 配置springMVC处理上传文件的信息 74 @Bean 75 public MultipartResolver multipartResolver() { 76 CommonsMultipartResolver resolver = new CommonsMultipartResolver(); 77 resolver.setDefaultEncoding("UTF-8"); 78 resolver.setMaxUploadSize(10485760000L); 79 resolver.setMaxInMemorySize(40960); 80 return resolver; 81 } 82 83 // 配置静态文件处理 84 @Override 85 public void addResourceHandlers(ResourceHandlerRegistry registry){ 86 87 /** 88 * addResourceHandler 指的是对外暴露的访问路径 89 * addResourceLocations 指的是文件放置的目录 90 * */ 91 registry.addResourceHandler("/assets/**") 92 .addResourceLocations("classpath:/assets/"); 93 94 // href 链接方式 下载文件 95 registry.addResourceHandler("/files/**") 96 .addResourceLocations("classpath:/files/"); 97 98 /** 99 * 解决 No handler found for GET /favicon.ico 异常 100 * */ 101 registry.addResourceHandler("/favicon.ico") 102 .addResourceLocations("classpath:/favicon.ico"); 103 104 } 105 106 // 重写 configurePathMatch ，改变路径参数匹配 107 @Override 108 public void configurePathMatch(PathMatchConfigurer configurer) { 109 110 /** 111 * Spring mvc 默认 如果路径参数后面带点，如 “/mm/nn/xx.yy” 后面的yy值将被忽略 112 * 加入下面的配置，就不会忽略“.”后面的参数了 113 * */ 114 configurer.setUseSuffixPatternMatch(false); 115 116 } 117 118 // 119 // // 负责读取二进制格式的数据和写出二进制格式的数据； 120 // @Bean 121 // public ByteArrayHttpMessageConverter byteArrayHttpMessageConverter() { 122 // 123 // return new ByteArrayHttpMessageConverter(); 124 // 125 // } 126 // 127 // // 负责读取字符串格式的数据和写出字符串格式的数据； 128 // @Bean 129 // public StringHttpMessageConverter stringHttpMessageConverter() { 130 // 131 // StringHttpMessageConverter messageConverter = new StringHttpMessageConverter(); 132 // messageConverter.setDefaultCharset(Charset.forName("UTF-8")); 133 // return messageConverter; 134 // 135 // } 136 // 137 // // 负责读取资源文件和写出资源文件数据； 138 // @Bean 139 // public ResourceHttpMessageConverter resourceHttpMessageConverter() { 140 // 141 // return new ResourceHttpMessageConverter(); 142 // 143 // } 144 // 145 // /** 146 // * 负责读取form提交的数据 147 // * 能读取的数据格式为 application/x-www-form-urlencoded， 148 // * 不能读取multipart/form-data格式数据； 149 // * 负责写入application/x-www-from-urlencoded和multipart/form-data格式的数据； 150 // */ 151 // @Bean 152 // public FormHttpMessageConverter formHttpMessageConverter() { 153 // 154 // return new FormHttpMessageConverter(); 155 // 156 // } 157 // 158 // // 负责读取和写入json格式的数据； 159 // /** 160 // * 配置 fastjson 中实现 HttpMessageConverter 接口的转换器 161 // * FastJsonHttpMessageConverter 是 fastjson 中实现了 HttpMessageConverter 接口的类 162 // */ 163 // @Bean(name = "fastJsonHttpMessageConverter") 164 // public FastJsonHttpMessageConverter fastJsonHttpMessageConverter() { 165 // // 166 // String txtHtml = "text/html;charset=UTF-8"; 167 // String txtJson = "text/json;charset=UTF-8"; 168 // String appJson = "application/json;charset=UTF-8"; 169 // 170 // // 这里顺序不能反，一定先写 text/html,不然 IE 下会出现下载提示 171 // List<MediaType> mediaTypes = new ArrayList<>(); 172 // mediaTypes.add(MediaType.parseMediaType(txtHtml)); 173 // mediaTypes.add(MediaType.parseMediaType(txtJson)); 174 // mediaTypes.add(MediaType.parseMediaType(appJson)); 175 // 176 // // 加入支持的媒体类型，返回 contentType 177 // FastJsonHttpMessageConverter fastjson = new FastJsonHttpMessageConverter(); 178 // fastjson.setSupportedMediaTypes(mediaTypes); 179 // return fastjson; 180 // 181 // } 182 // 183 // // 负责读取和写入 xml 中javax.xml.transform.Source定义的数据； 184 // @Bean 185 // public SourceHttpMessageConverter sourceHttpMessageConverter() { 186 // 187 // return new SourceHttpMessageConverter(); 188 // 189 // } 190 // 191 // // 负责读取和写入xml 标签格式的数据； 192 // @Bean 193 // public Jaxb2RootElementHttpMessageConverter jaxb2RootElementHttpMessageConverter() { 194 // 195 // return new Jaxb2RootElementHttpMessageConverter(); 196 // 197 // } 198 // 199 // // 注册消息转换器 200 // /** 201 // * 重写 configureMessageConverters 会覆盖掉 spring mvc 默认注册的多个 HttpMessageConverter 202 // * 所以 推荐使用 extendMessageConverter 203 // * */ 204 // /** 205 // * Error: 206 // * 400：（错误请求） 服务器不理解请求的语法。 207 // * 415：（不支持的媒体类型） 请求的格式不受请求页面的支持。 208 // */ 209 // @Override 210 // public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { 211 // 212 // converters.add(this.byteArrayHttpMessageConverter()); 213 // converters.add(this.stringHttpMessageConverter()); 214 // converters.add(this.resourceHttpMessageConverter()); 215 // converters.add(this.formHttpMessageConverter()); 216 // converters.add(this.fastJsonHttpMessageConverter()); 217 // converters.add(this.sourceHttpMessageConverter()); 218 // converters.add(this.jaxb2RootElementHttpMessageConverter()); 219 // 220 // } 221 222 // 自定义 HttpMessageConverter 223 @Bean 224 public CustomMessageConverter customMessageConverter(){ 225 226 return new CustomMessageConverter(); 227 228 } 229 230 // 负责读取和写入json格式的数据； 231 /** 232 * 配置 fastjson 中实现 HttpMessageConverter 接口的转换器 233 * FastJsonHttpMessageConverter 是 fastjson 中实现了 HttpMessageConverter 接口的类 234 */ 235 @Bean(name = "fastJsonHttpMessageConverter") 236 public FastJsonHttpMessageConverter fastJsonHttpMessageConverter() { 237 // 238 String txtHtml = "text/html;charset=UTF-8"; 239 String txtJson = "text/json;charset=UTF-8"; 240 String appJson = "application/json;charset=UTF-8"; 241 242 // 这里顺序不能反，一定先写 text/html,不然 IE 下会出现下载提示 243 List<MediaType> mediaTypes = new ArrayList<>(); 244 mediaTypes.add(MediaType.parseMediaType(txtHtml)); 245 mediaTypes.add(MediaType.parseMediaType(txtJson)); 246 mediaTypes.add(MediaType.parseMediaType(appJson)); 247 248 // 加入支持的媒体类型，返回 contentType 249 FastJsonHttpMessageConverter fastjson = new FastJsonHttpMessageConverter(); 250 fastjson.setSupportedMediaTypes(mediaTypes); 251 return fastjson; 252 253 } 254 255 /** 256 * 重写 extendMessageConverters 方法，仅添加自定义 HttpMessageConverter 257 * 不覆盖默认注册的 HttpMessageConverter 258 * */ 259 @Override 260 public void extendMessageConverters(List<HttpMessageConverter<?>> converters) { 261 262 converters.add(customMessageConverter()); 263 converters.add(fastJsonHttpMessageConverter()); 264 265 } 266 267 // 拦截器 bean 268 @Bean 269 public TimerInterceptor timerInterceptor(){ 270 271 return new TimerInterceptor(); 272 273 } 274 275 // 重写 addInterceptors 注册拦截器 276 @Override 277 public void addInterceptors(InterceptorRegistry registry) { 278 279 registry.addInterceptor(timerInterceptor()); 280 281 } 282 283 }
3.RootConfig.java
1 package lm.solution.web.config.configs; 2 3 import lm.solution.web.config.beans.MySqlBean; 4 import lm.solution.web.config.beans.RedisBean; 5 import org.springframework.context.annotation.Configuration; 6 import org.springframework.context.annotation.Import; 7 import lm.solution.web.config.beans.HandlerBean; 8 9 @Configuration 10 @Import({ 11 RedisBean.class, 12 MySqlBean.class, 13 HandlerBean.class 14 }) 15 public class RootConfig { 16 /** 17 * 此处管理 Beans 18 * */ 19 }
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2018-05-20 23:46 周日