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SpringMVC+FastJson+Swagger集成的完整实例教程

基础部分

成都创新互联服务项目包括新余网站建设、新余网站制作、新余网页制作以及新余网络营销策划等。多年来,我们专注于互联网行业,利用自身积累的技术优势、行业经验、深度合作伙伴关系等,向广大中小型企业、政府机构等提供互联网行业的解决方案,新余网站推广取得了明显的社会效益与经济效益。目前,我们服务的客户以成都为中心已经辐射到新余省份的部分城市,未来相信会继续扩大服务区域并继续获得客户的支持与信任!

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 (本地下载)

特性:

  • 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

实战部分

Spring MVC+FastJson+Swagger集成的完整实例教程

1、pom.xml 中引入spring mvc、 fastjson 依赖


 4.0.0
 com.mengdee
 platform-springmvc-webapp
 war
 0.0.1-SNAPSHOT
 platform-springmvc-webapp Maven Webapp
 http://maven.apache.org

 
 UTF-8
 3.8.1
 2.5
 1.2
 4.2.3.RELEASE
 1.2.32

 

 
 
 junit
 junit
 3.8.1
 test
 

 
 javax.servlet
 jstl
 ${jstl.version}
 

 
 
 org.springframework
 spring-webmvc
 ${spring.version}
 
 
 org.springframework
 spring-core
 ${spring.version}
 
 
 org.springframework
 spring-context
 ${spring.version}
 
 
 org.springframework
 spring-context-support
 ${spring.version}
 
 
 org.springframework
 spring-jdbc
 ${spring.version}
 

 
 com.alibaba
 fastjson
 ${fastjson.version}
 

 

 
 
 
 aliyun
 aliyun
 http://maven.aliyun.com/nexus/content/groups/public
 
 

 
 platform-springmvc-webapp
 

2、 配置web.xml




 Archetype Created Web Application
 
 contextConfigLocation
 classpath:conf/spring/spring-*.xml
 

 
 Spring监听器
 org.springframework.web.context.ContextLoaderListener
 

 
 spring-mvc
 org.springframework.web.servlet.DispatcherServlet
  
 contextConfigLocation 
 /WEB-INF/spring-servlet.xml 
 
 1
 
 
 spring-mvc
 /
 

 
 characterEncodingFilter
 org.springframework.web.filter.CharacterEncodingFilter
 
 encoding
 UTF-8
 
 
 forceEncoding
 true
 
 
 
 characterEncodingFilter
 /*
 


 
 /index.jsp
 

 
 404
 /index.jsp
 

3、 配置spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>


 

  
   
   
  
  
  

 
 
 
 
 
 
 
 text/html;charset=UTF-8
 application/json
 
 
 
 

 QuoteFieldNames 
 WriteMapNullValue 

 

 
 
 
 
 
 

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 obj = new ArrayList<>();

 public Person() {

 }
 public Person(Long id, String name, byte gender, short age, long salary, double weight, char level, boolean adult,
 Date birthday, String[] hobbies, List dogs, Map address) {
 super();
 this.id = id;
 this.name = name;
 this.gender = gender;
 this.age = age;
 this.salary = salary;
 this.weight = weight;
 this.level = level;
 this.adult = adult;
 this.birthday = birthday;
 this.hobbies = hobbies;
 this.dogs = dogs;
 this.address = address;
 }


 public Long getId() {
 return id;
 }
 public void setId(Long id) {
 this.id = id;
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public byte getGender() {
 return gender;
 }
 public void setGender(byte gender) {
 this.gender = gender;
 }
 public short getAge() {
 return age;
 }
 public void setAge(short age) {
 this.age = age;
 }
 public long getSalary() {
 return salary;
 }
 public void setSalary(long salary) {
 this.salary = salary;
 }
 public double getWeight() {
 return weight;
 }
 public void setWeight(double weight) {
 this.weight = weight;
 }
 public char getLevel() {
 return level;
 }
 public void setLevel(char level) {
 this.level = level;
 }
 public boolean isAdult() {
 return adult;
 }
 public void setAdult(boolean adult) {
 this.adult = adult;
 }
 public Date getBirthday() {
 return birthday;
 }
 public void setBirthday(Date birthday) {
 this.birthday = birthday;
 }

 // 处理序列化枚举类型,默认的值是序列化枚举值字符串,而不是枚举绑定的索引或者文本
 @JSONField(name = "edu")
 public int getEdu(){
 return education.getIndex();
 }

 @JSONField(name = "edu")
 public void setEdu(int index){
 this.education = Education.getEnum(index);
 }

 @JSONField(serialize = false)
 public Education getEducation() {
 return education;
 }

 @JSONField(serialize = false)
 public void setEducation(Education education) {
 this.education = education;
 }


 public String[] getHobbies() {
 return hobbies;
 }
 public void setHobbies(String[] hobbies) {
 this.hobbies = hobbies;
 }
 public List getDogs() {
 return dogs;
 }
 public void setDogs(List dogs) {
 this.dogs = dogs;
 }
 public Map getAddress() {
 return address;
 }
 public void setAddress(Map address) {
 this.address = address;
 }
}

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;
 }
}

Swagger集成

第一步:引入相关依赖


 io.springfox
 springfox-swagger2
 2.6.1
 compile


 com.fasterxml.jackson.core
 jackson-databind
 2.6.6

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", "baidu@163.com");
 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
  • @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
  • @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

Spring MVC+FastJson+Swagger集成的完整实例教程

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 (本地下载)),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

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


2、 在web.xml中增加要过滤的静态文件



 default
 *.js
 *.css
 /assets/*"
 /images/*

Spring MVC+FastJson+Swagger集成的完整实例教程

示例项目代码结构:

Spring MVC+FastJson+Swagger集成的完整实例教程

完整示例Demo下载地址: http://xiazai.jb51.net/201804/yuanma/platform-springmvc-webapp(jb51.net).rar

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


 spring-mvc
 org.springframework.web.servlet.DispatcherServlet
  
 contextConfigLocation 
 /WEB-INF/spring-servlet.xml 
 
 1

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





 

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


 contextConfigLocation
 classpath:conf/spring/spring-*.xml

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

总结

以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,如果有疑问大家可以留言交流,谢谢大家对创新互联的支持。


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