SpringMVC+FastJson+Swagger集成完整示例
一：目录
一：基础部分
- 简介
- fastjson api
二：实战部分
- Spring MVC + fastjson 整合
- 三：Swagger集成
二：基础部分
1. FastJson 简介
Fastjson是一个Java库,可用于将Java对象转换为JSON表示。它也可以被用来将一个JSON字符串转换成一个等效的Java对象。在转换速度上应该是最快的，几乎成为了项目的标配（在ajax请求和接口开发时一般都会用fastjson而不再使用jackson）。
GitHub： https://github.com/alibaba/fastjson
特性：
- 在服务器端和android客户端提供最佳性能
- 提供简单toJSONString()和parseObject()方法的Java对象转换为JSON,反之亦然
- 允许存在的无法改变的对象转换为从JSON
- Java泛型的广泛支持
- 允许自定义表示对象
- 支持任意复杂的对象(深继承层次结构和广泛使用泛型类型)
主要特点：
快速FAST (比其它任何基于Java的解析器和生成器更快，包括jackson）
强大（支持普通JDK类包括任意Java Bean Class、Collection、Map、Date或enum）
零依赖（没有依赖其它任何类库除了JDK）
支持注解
2. fastjson api
Fastjson API入口类是com.alibaba.fastjson.JSON，常用的序列化操作都可以在JSON类上的静态方法直接完成。
// 把JSON文本parse为JSONObject或者JSONArray
public static final Object parse(String text);
// 把JSON文本parse成JSONObject
public static final JSONObject parseObject(String text)；
// 把JSON文本parse为JavaBean
public static final T parseObject(String text, Class clazz);
// 把JSON文本parse成JSONArray
public static final JSONArray parseArray(String text);
// 把JSON文本parse成JavaBean集合
public static final List parseArray(String text, Class clazz);
// 将JavaBean序列化为JSON文本
public static final String toJSONString(Object object);
// 将JavaBean序列化为带格式的JSON文本
public static final String toJSONString(Object object, boolean prettyFormat);
// 将JavaBean转换为JSONObject或者JSONArray
public static final Object toJSON(Object javaObject);
JSONArray：相当于List
JSONObject：相当于Map
SerializeConfig: 是对序列化过程中一些序列化过程的特殊配置, 如对一些字段进行格式处理（日期、枚举等）
SerializeWriter：相当于StringBuffer
SerializerFeature属性 ：
QuoteFieldNames 输出key时是否使用双引号,默认为true
UseSingleQuotes 使用单引号而不是双引号,默认为false
WriteMapNullValue 是否输出值为null的字段,默认为false
WriteEnumUsingToString Enum输出name()或者original,默认为false
UseISO8601DateFormat Date使用ISO8601格式输出，默认为false
WriteNullListAsEmpty List字段如果为null,输出为[],而非null
WriteNullStringAsEmpty 字符类型字段如果为null,输出为”“,而非null
WriteNullNumberAsZero 数值字段如果为null,输出为0,而非null
WriteNullBooleanAsFalse Boolean字段如果为null,输出为false,而非null
SkipTransientField 如果是true，类中的Get方法对应的Field是transient，序列化时将会被忽略。默认为true
SortField 按字段名称排序后输出。默认为false
WriteTabAsSpecial 把\t做转义输出，默认为false 不推荐
PrettyFormat 结果是否格式化,默认为false
WriteClassName 序列化时写入类型信息，默认为false。反序列化是需用到
DisableCircularReferenceDetect 消除对同一对象循环引用的问题，默认为false
WriteSlashAsSpecial 对斜杠’/’进行转义
BrowserCompatible 将中文都会序列化为\uXXXX格式，字节数会多一些，但是能兼容IE 6，默认为false
WriteDateUseDateFormat 全局修改日期格式,默认为false。JSON.DEFFAULT_DATE_FORMAT = “yyyy-MM-dd”;JSON.toJSONString(obj, SerializerFeature.WriteDateUseDateFormat);
DisableCheckSpecialChar 一个对象的字符串属性中如果有特殊字符如双引号，将会在转成json时带有反斜杠转移符。如果不需要转义，可以使用这个属性。默认为false
NotWriteRootClassName 含义
BeanToArray 将对象转为array输出
WriteNonStringKeyAsString
NotWriteDefaultValue
BrowserSecure
IgnoreNonFieldGetter
WriteEnumUsingName
三：实战部分
1、pom.xml 中引入spring mvc、 fastjson 依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.mengdeegroupId>
<artifactId>platform-springmvc-webappartifactId>
<packaging>warpackaging>
<version>0.0.1-SNAPSHOTversion>
<name>platform-springmvc-webapp Maven Webappname>
<url>http://maven.apache.orgurl>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<junit.version>3.8.1junit.version>
<log4j.version>2.5log4j.version>
<jstl.version>1.2jstl.version>
<spring.version>4.2.3.RELEASEspring.version>
<fastjson.version>1.2.32fastjson.version>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>3.8.1version>
<scope>testscope>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jstlartifactId>
<version>${jstl.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>${fastjson.version}version>
dependency>
dependencies>
<repositories>
<repository>
<id>aliyunid>
<name>aliyunname>
<url>http://maven.aliyun.com/nexus/content/groups/publicurl>
repository>
repositories>
<build>
<finalName>platform-springmvc-webappfinalName>
build>
project>
2、 配置web.xml
<web-app>
<display-name>Archetype Created Web Applicationdisplay-name>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:conf/spring/spring-*.xmlparam-value>
context-param>
<listener>
<description>Spring监听器description>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>spring-mvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>/WEB-INF/spring-servlet.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>spring-mvcservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>characterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
<init-param>
<param-name>forceEncodingparam-name>
<param-value>trueparam-value>
init-param>
filter>
<filter-mapping>
<filter-name>characterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<welcome-file-list>
<welcome-file>/index.jspwelcome-file>
welcome-file-list>
<error-page>
<error-code>404error-code>
<location>/index.jsplocation>
error-page>
web-app>
3、 配置spring-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
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-4.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd">
<context:component-scan base-package="com.mengdee.manage.controller" />
<bean id="ViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/">property>
<property name="suffix" value=".jsp">property>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView">property>
bean>
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8value>
<value>application/jsonvalue>
list>
property>
<property name="features">
<list>
<value>QuoteFieldNamesvalue>
<value>WriteMapNullValuevalue>
list>
property>
bean>
mvc:message-converters>
mvc:annotation-driven>
beans> 4、Java
Education:学历(枚举类)
package com.mengdee.manage.entity;
import java.util.HashMap;
import java.util.Map;
/**
* 学历
* @author Administrator
*
*/
public enum Education {
KINDERGARTEN("幼儿园", 1),
ELEMENTARY("小学", 2),
JUNIOR_MIDDLE("初级中学", 3),
SENIOR_MIDDLE("高级中学", 4),
UNIVERSITY("大学", 5),
COLLEGE("学院", 6);
private static final Map EDUCATION_MAP = new HashMap();
static {
for (Education education : Education.values()) {
EDUCATION_MAP.put(education.getIndex(), education);
}
}
private String text;
private int index;
private Education(String text, int index) {
this.text = text;
this.index = index;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public static Education getEnum(Integer index) {
return EDUCATION_MAP.get(index);
}
} Person:
package com.mengdee.manage.entity;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import com.alibaba.fastjson.annotation.JSONField;
public class Person {
private Long id;
private String name;
private byte gender; // 性别 1：男 2：女
private short age; // 年龄
private long salary; // 薪水
private double weight; // 体重
private char level; // 评级
private boolean adult; // 是否成年人
private Date birthday; // 生日
private Education education;// 学历
private String[] hobbies; // 爱好
private List dogs; // 宠物狗
private Map address; // 住址
// 使用注解控制是否要序列化
@JSONField(serialize = false)
private List TestController
package com.mengdee.manage.controller;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.serializer.DoubleSerializer;
import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SimpleDateFormatSerializer;
import com.mengdee.manage.entity.Address;
import com.mengdee.manage.entity.Dog;
import com.mengdee.manage.entity.Education;
import com.mengdee.manage.entity.Person;
@Controller
public class TestController {
private static SerializeConfig serializeConfig = new SerializeConfig();
static {
serializeConfig.put(Date.class, new SimpleDateFormatSerializer("yyyy-MM-dd HH:mm:ss"));
serializeConfig.put(Double.class, new DoubleSerializer(new DecimalFormat("0.00")));
}
@RequestMapping("/index")
public String index(){
return "index";
}
// javabean to object
@RequestMapping("/json")
@ResponseBody
public Object json(){
Person person = new Person();
person.setId(1L);
person.setName("mengdee");
person.setAge((short) 18);
//
/*
{
"birthday": null,
"weight": 0,
"dogs": null,
"adult": false,
"hobbies": null,
"education": null,
"id": 1,
"level": "",
"address": null,
"age": 18,
"name": "mengdee",
"gender": 0,
"salary": 0
}
*/
Object personJson = JSON.toJSON(person);
return personJson;
}
// javabean to string
@RequestMapping("/json2")
@ResponseBody
public String json2(){
Person person = new Person();
person.setId(1L);
person.setName("mengdee");
person.setAge((short) 18);
// 使用该方式值为null的经测试不出来，已经配置了WriteMapNullValue
// "{"adult":false,"age":18,"gender":0,"id":1,"level":"","name":"mengdee","salary":0,"weight":0.0}"
String jsonString = JSON.toJSONString(person);
return jsonString;
}
@RequestMapping("/json3")
@ResponseBody
public Object json3(){
Person person = new Person();
person.setId(1L);
person.setName("mengdee");
person.setAge((short) 18);
person.setBirthday(new Date());
Object personJson = JSON.toJSON(person); // JSON.toJSON(person)默认是毫秒数"birthday":1495073314780,
// 使用serializeConfig序列号配置对日期格式化
// "{"birthday":"2017-05-18 10:19:55","weight":0.0,"adult":false,"id":1,"level":"","age":18,"name":"mengdee","gender":0,"salary":0}"
String jsonString = JSON.toJSONString(personJson, serializeConfig);
return jsonString;
}
@RequestMapping("/json4")
@ResponseBody
public Object json4(){
Person person = new Person();
person.setId(1L);
person.setName("mengdee");
person.setAge((short) 18);
person.setBirthday(new Date());
person.setEducation(Education.UNIVERSITY); // 枚举
String[] hobbies = {"读书", "旅游"};
person.setHobbies(hobbies);
Dog dog1 = new Dog(1L, "dog1", (short)1);
Dog dog2 = new Dog(2L, "dog2", (short)2);
List dogs = new ArrayList<>();
dogs.add(dog1);
dogs.add(dog2);
person.setDogs(dogs);
Address address1 = new Address(1l, "上海浦东新区");
Address address2 = new Address(2l, "上海宝山区");
Map addressMap = new HashMap<>();
addressMap.put(address1.getId() + "", address1);
addressMap.put(address2.getId() + "", address2);
person.setAddress(addressMap);
Object personJson = JSON.toJSON(person);
return personJson;
}
@RequestMapping("/json5")
@ResponseBody
public String json5(){
Dog dog1 = new Dog(1L, "dog1", (short)1);
Dog dog2 = new Dog(2L, "dog2", (short)2);
List dogs = new ArrayList<>();
dogs.add(dog1);
dogs.add(dog2);
// List -> JSON
String jsonString = JSON.toJSONString(dogs, false);
System.out.println(jsonString);
// JSON -> List
List parseArray = JSON.parseArray(jsonString, Dog.class);
for (Dog dog : parseArray) {
System.out.println(dog);
}
Map map = new HashMap();
map.put("dog1",new Dog(1L, "dog1", (short)1));
map.put("dog2",new Dog(2L, "dog2", (short)2));
map.put("dog3",new Dog(3L, "dog3", (short)3));
// Map -> JSON
String mapJsonString = JSON.toJSONString(map,true);
System.out.println(mapJsonString);
// JSON -> Map
@SuppressWarnings("unchecked")
Map map1 = (Map)JSON.parse(mapJsonString);
for (String key : map1.keySet()) {
System.out.println(key + ":" + map1.get(key));
}
// Array -> JSON
String[] hobbies = {"a","b","c"};
String hobbiesString = JSON.toJSONString(hobbies,true);
System.out.println(hobbies);
// JSON -> Array
JSONArray jsonArray = JSON.parseArray(hobbiesString);
for (Object o : jsonArray) {
System.out.println(o);
}
System.out.println(jsonArray);
return jsonString;
}
}
四：Swagger集成
第一步：引入相关依赖
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.6.1version>
<scope>compilescope>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.6.6version>
dependency>第二步：Swagger信息配置
SwaggerConfig.java
@Configuration
@EnableWebMvc
@EnableSwagger2
public class SwaggerConfig {
@Bean
public Docket customDocket() {
Docket docket = new Docket(DocumentationType.SWAGGER_2);
docket.apiInfo(apiInfo());
docket.select().apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class));
docket.select().paths(PathSelectors.regex("/api/.*")).build();
return docket;
}
private ApiInfo apiInfo() {
Contact contact = new Contact("小明", "http://www.baidu.com", "[email protected]");
return new ApiInfo("API接口", //大标题 title
"API接口", //小标题
"0.0.1", //版本
"www.baidu.com",//termsOfServiceUrl
contact,//作者
"API接口",//链接显示文字
"http://www.baidu.com"//网站链接
);
}
}
注意：因SwaggerConfig这个类配置了注解，所以这个类必须被扫描到，即该类一定包含在context:component-scan中。
第三步：在类、方法、参数上使用注解
@Controller
@RequestMapping("/api/v1")
@Api(description = "API接口")
public class ApiController {
@ApiOperation(value = "用户登录", notes = "用户登录接口")
@ApiResponses({
@ApiResponse(code = 0, message = "success"),
@ApiResponse(code = 10001, message = "用户名错误", response = IllegalArgumentException.class),
@ApiResponse(code = 10002, message = "密码错误")
})
@RequestMapping(value = "/user/login", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8;"})
@ResponseBody
public String login(@ApiParam(name = "username", value = "用户名", required = true) @RequestParam String username,
@ApiParam(name = "password", value = "密码", required = true) @RequestParam String password){
return "{'username':'" + username + "', 'password':'" + password + "'}";
}
@ApiImplicitParams({
@ApiImplicitParam(paramType = "header", name = "phone", dataType = "String", required = true, value = "手机号"),
@ApiImplicitParam(paramType = "query", name = "nickname", dataType = "String", required = true, value = "nickname", defaultValue = "双击666"),
@ApiImplicitParam(paramType = "path", name = "platform", dataType = "String", required = true, value = "平台", defaultValue = "PC"),
@ApiImplicitParam(paramType = "body", name = "password", dataType = "String", required = true, value = "密码")
})
@RequestMapping(value = "/{platform}/user/regist", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8;"})
@ResponseBody
public String regist(@RequestHeader String phone, @RequestParam String nickname, @PathVariable String platform, @RequestBody String password){
return "{'username':'" + phone + "', 'nickname':'" + nickname + "', 'platform': '" + platform + "', 'password':'"+password+"'}";
}
@RequestMapping(value = "/user/list", method = RequestMethod.GET, produces = {"application/json;charset=UTF-8;"})
@ResponseBody
public String getUserList(Pager pager){
return "[{'id': "+pager.getPage()+", 'username': 'zhangsan"+pager.getSize()+"'}]";
}
@RequestMapping("/docs")
@ApiIgnore
public String test(){
return "api-docs";
}
}Pager
public class Pager {
@ApiModelProperty(value = "页码", required = true)
private int page;
@ApiModelProperty(value = "每页条数", required = true)
private int size;
public Pager() {
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getSize() {
return size;
}
public void setSize(int size) {
this.size = size;
}
}常用注解：
- @Api(description = “接口类的描述”)
- @ApiOperation(value = “接口方法的名称”, notes = “备注说明”)
- @ApiParam(name = “参数名称”, value = “备注说明”, required = 是否必须)：标注在方法的参数上 用于描述参数的名称、备注、是否必须等信息
- @ApiImplicitParam(paramType = “query”, name = “password”, dataType = “String”, required = true, value = “密码”, defaultValue = “123456”)用于描述方法的参数，标注在方法上，和@ApiParam功能一样，只是标注的位置不同而已
- paramType：参数类型，即参数放在哪个地方
- header–>请求参数的获取：@RequestHeader，参数放在请求头
- query–>请求参数的获取：@RequestParam，参数追加在url后面
- path（用于restful接口）–>请求参数的获取：@PathVariable
- body 使用@RequestBody接收数据 POST有效，参数放在请求体中
- form
- name：参数名
- dataType：参数的数据类型
- required：参数是否必须传
- value：参数的描述
- defaultValue：参数的默认值
- paramType：参数类型，即参数放在哪个地方
- @ApiImplicitParams： 用于包含多个@ApiImplicitParam
- @ApiResponse(code = 0, message = “success”),
- code：响应码，例如400
- message：信息，一般是对code的描述
- response：抛出异常的类
- @ApiModel：描述一个Model的信息（这种一般用在post创建的时候，使用@RequestBody这样的场景，请求参数无法使用@ApiImplicitParam注解进行描述的时候）
- @ApiModelProperty：描述一个model的属性
- position 允许在模型中显式地排序属性。
- value 参数名称
- required 是否必须 boolean
- hidden 是否隐藏 boolean
- allowableValues = “range[0, 1]” 一般用于指定参数的合法值
- @ApiModelProperty：描述一个model的属性
- @ApiIgnore：用于或略该接口，不生成该接口的文档
第四步：访问/v2/api-docs
在浏览器上访问http://localhost:8080/工程名称/v2/api-docs 如果有json内容，证明正常
第五步：下载swagger-ui
从github上下载https://github.com/swagger-api/swagger-ui，注意这里要选择下载v2.2.10（https://github.com/swagger-api/swagger-ui/tree/v2.2.10），大于这个版本的集成方式不一样。
集成方法：将v2.2.10下的dist目录下的所有文件放到自己工程中静态文件中，并使用下面代码覆盖掉index.html中的脚本部分
<script type="text/javascript">
var baseUrl = "";
$(function () {
var url = window.location.search.match(/url=([^&]+)/);
if (url && url.length > 1) {
url = decodeURIComponent(url[1]);
} else {
//上面描述的api-docs地址
url = baseUrl + "/webapp/v2/api-docs";
}
// Pre load translate...
if (window.SwaggerTranslator) {
window.SwaggerTranslator.translate();
}
window.swaggerUi = new SwaggerUi({
url: url,
validatorUrl: undefined,
dom_id: "swagger-ui-container",
supportedSubmitMethods: ['get', 'post', 'put', 'delete', 'patch'],
onComplete: function (swaggerApi, swaggerUi) {
if (typeof initOAuth == "function") {
initOAuth({
clientId: "your-client-id",
clientSecret: "your-client-secret-if-required",
realm: "your-realms",
appName: "your-app-name",
scopeSeparator: ",",
additionalQueryStringParams: {}
});
}
if (window.SwaggerTranslator) {
window.SwaggerTranslator.translate();
}
$('pre code').each(function (i, e) {
hljs.highlightBlock(e)
});
addApiKeyAuthorization();
},
onFailure: function (data) {
log("Unable to Load SwaggerUI");
},
docExpansion: "none",
jsonEditor: false,
apisSorter: "alpha",
defaultModelRendering: 'schema',
showRequestHeaders: false
});
//这里可以添加权限认证，例如token
function addApiKeyAuthorization() {
var token = "you-token";
var tokenHeader = new SwaggerClient.ApiKeyAuthorization("token", token, "header");
window.swaggerUi.api.clientAuthorizations.add("token", tokenHeader);
}
window.swaggerUi.load();
function log() {
if ('console' in window) {
console.log.apply(console, arguments);
}
}
});
script>第六步：访问上面修改的那个index.html
http://localhost:8080/工程名称/static/third-party/swagger-ui/index.html
注意：因要访问静态资源，使用springmvc请确保静态资源能够被访问到，如果不能访问请做如下配置：
1、 在Spring的配置文件中增加默认的servlet处理器
<mvc:default-servlet-handler/>2、 在web.xml中增加要过滤的静态文件
<servlet-mapping>
<servlet-name>defaultservlet-name>
<url-pattern>*.jsurl-pattern>
<url-pattern>*.cssurl-pattern>
<url-pattern>/assets/*"url-pattern>
<url-pattern>/images/*url-pattern>
servlet-mapping>
示例项目代码结构：
完整示例Demo下载地址： http://download.csdn.net/download/vbirdbest/10165811
五：其他
关于spring-servlet.xml 和 applicationContext.xml
- SpringMVC 提供了两种配置文件 spring-servlet.xml 、 applicationContext.xml
- spring-servlet.xml 是Controller级别的，作用范围是控制层，默认的名字是【servlet-name】-servlet.xml
默认是放在WEB-INF/目录下，SpringMVC会自动加载，也可以在web.xml中配置它的位置
<servlet>
<servlet-name>spring-mvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>/WEB-INF/spring-servlet.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>一般在spring-servlet.xml中配置一些和控制器相关的配置,如视图解析、静态资源文件的映射、返回结果的解析等
- 视图解析
- org.springframework.web.servlet.view.UrlBasedViewResolver
- tiles3： org.springframework.web.servlet.view.tiles3.TilesConfigurer
- springMVC: org.springframework.web.servlet.view.InternalResourceViewResolver，
- shiro: org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor
- 上传 org.springframework.web.multipart.commons.CommonsMultipartResolver，
- 静态资源映射
<mvc:resources location="/static/" mapping="/static/**" />
<mvc:resources location="/images/" mapping="/static/**" />
<mvc:resources location="/css/" mapping="/static/**" />
<mvc:resources location="/js/" mapping="/static/**" />
<mvc:resources location="/html/" mapping="/static/**" />
<mvc:resources location="/upload/" mapping="/static/**" />- org.springframework.context.support.ResourceBundleMessageSource
- 返回结果的解析
- FastJson: com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter
3、applicationContext.xml 是系统级别的配置，作用范围是系统上下文，它的初始化需要放到 web.xml 中的context-param中配置
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:conf/spring/spring-*.xmlparam-value>
context-param>4、 关于applicationContxt.xml，一般是按照功能拆成多个配置文件如：
- applicationContxt-base.xml // 基础
- applicationContxt-redis.xml // redis相关配置
- applicationContxt-shiro.xml // shiro 相关配置
- applicationContxt-dao.xml // 数据库相关配置
- applicationContxt-xxx.xml // xxx