springMVC环境搭建
1.在myeclipse上建立web projectproject选择加入mavenproject add maven support
2.选择建立web.xml文件,名字随意
3.选择standard Maven JEEproject structure
4.点击取消两个环境依赖
5.之后形成例如以下文件夹（由于我这个文件夹是git文件夹所以有一些版本号控制信息）
会有报错信息是由于没有jsp和servlet的jar包
6.增加jsp和servlet的jar包
<span style="white-space:pre"> </span><!-- jstl begin--> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> <type>jar</type> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> <type>jar</type> </dependency> <!-- jstl end--> <!-- servlet,jsp begin--> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2</version> <scope>provided</scope> </dependency> <!-- servlet,jsp end-->
报错信息解决
7.添加springmvc的jar包和日志包
<!-- springmvc begin --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.0.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.0.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>4.0.8.RELEASE</version> </dependency> <!-- springmvc end --> <!-- LOGGING begin --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.7</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.7</version> </dependency> <!-- common-logging 实际调用slf4j --> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>1.7.7</version> </dependency> <!-- java.util.logging 实际调用slf4j --> <dependency> <groupId>org.slf4j</groupId> <artifactId>jul-to-slf4j</artifactId> <version>1.7.7</version> </dependency> <!-- LOGGING end -->
8.web.xml中添加springMVC的配置和监听
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>springmvc</display-name>
<!-- Context ConfigLocation -->
<listener>
<!-- 监听器的作用就是启动Web容器时，自己主动装配ApplicationContext的配置信息 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 载入spring相关的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:/spring/spring-context*.xml
</param-value>
</context-param>
<listener>
<!-- 使Spring支持request与session的scope,如 -->
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<!-- 解决乱码 过滤器 -->
<filter>
<filter-name>encodingFilter</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>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- SpringMVC 载入配置文件 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/spring/spring-mvc*.xml</param-value>
</init-param>
<!-- 设置启动顺序 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 日志配置 -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:/properties/log4j.properties</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- 配置错误信息 -->
<error-page>
<error-code>500</error-code>
<location>/WEB-INF/views/error/500.jsp</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/views/error/404.jsp</location>
</error-page>
</web-app>
9.添加工具类jar包
<span style="white-space:pre"> </span><!-- jackson json begin --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.module</groupId> <artifactId>jackson-module-jaxb-annotations</artifactId> <version>2.2.3</version> </dependency> <!-- jackson json end --> <!-- GENERAL UTILS begin --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.3.2</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> <version>1.9.1</version> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency> <!-- google java lib --> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>17.0</version> </dependency> <!-- JSON begin --> <dependency> <groupId>org.json</groupId> <artifactId>json</artifactId> <version>20160212</version> </dependency> <!-- JSON end -->
10.添加springmvc配置文件和配置文件
<?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-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <description>Spring MVC Configuration</description> <!-- 载入配置属性文件 --> <context:property-placeholder ignore-unresolvable="true" location="classpath:/properties/config.properties" /> <!-- 使用Annotation自己主动注冊Bean,仅仅扫描@Controller --> <context:component-scan base-package="com" use-default-filters="false"><!-- base-package 假设多个，用“,”分隔 --> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 定义视图文件解析 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="${web.view.prefix}"/> <property name="suffix" value="${web.view.suffix}"/> </bean> <!-- 默认的注解映射的支持，org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping --> <mvc:annotation-driven content-negotiation-manager="contentNegotiationManager"> <mvc:message-converters register-defaults="true"> <!-- 将StringHttpMessageConverter的默认编码设为UTF-8 --> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value="UTF-8" /> </bean> <!-- 把ByteArray加在Json前面 ,先处理下载文件，不是下载的文件之后用json拦截 --> <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/> <!-- 将Jackson2HttpMessageConverter的默认格式化输出为false --> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list><value>application/json;charset=UTF-8</value></list> </property> <property name="prettyPrint" value="false"/> <property name="objectMapper"> <bean class="com.utils.JsonMapper"></bean> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- REST中依据URL后缀自己主动判定Content-Type及对应的View --> <bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean"> <property name="mediaTypes" > <map> <entry key="xml" value="application/xml"/> <entry key="json" value="application/json"/> </map> </property> <property name="ignoreAcceptHeader" value="true"/> <property name="favorPathExtension" value="true"/> </bean> <!-- 静态资源映射 --> <mvc:annotation-driven /> <!-- 静态资源映射 --> <mvc:resources mapping="/static/**" location="/static/" cache-period="31536000"/> <!-- 定义无Controller的path<->view直接映射 --> <mvc:view-controller path="/" view-name="redirect:${web.view.index}"/> <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionMappings"> <props> <prop key="java.lang.Throwable">error/500</prop> </props> </property> </bean> <!-- 支持Shiro对Controller的方法级AOP安全控制 end --> <!-- 上传文件拦截，设置最大上传文件大小 10M=10*1024*1024(B)=10485760 bytes --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="${web.maxUploadSize}" /> </bean> </beans>
spring-context.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:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd" default-lazy-init="true"> </beans>
log4j
# This is the configuring for logging displayed in the Application Server
log4j.rootCategory=error,stdout,logfile
log4j.logger.com=info
#log4j.logger.org.hibernate=info
log4j.logger.org.springframework=info
#stdout configure
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern= [%d{yyyy-MM-dd HH\:mm\:ss}]%-5p %c(line\:%L) %x-%m%n
#logfile configure
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
#log4j.appender.logfile.File=${catalina.base}/logs/i-test.log
log4j.appender.logfile.File=quartz.log
log4j.appender.logfile.MaxFileSize=1024kb
log4j.appender.logfile.MaxBackupIndex=10
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern= [%d{yyyy-MM-dd HH\:mm\:ss}]%-5p %c(line\:%L) %x-%m%n
config.properties
#============================# #===== SpringMVC sttings =====# #============================# #索引页路径 web.view.index=/ #视图文件存放路径 web.view.prefix=/WEB-INF/views/ web.view.suffix=.jsp #最大文件上传限制，单位字节. 10M=10*1024*1024(B)=10485760 bytes，需同步改动：ckfinder.xml web.maxUploadSize=10485760
11.添加自己主动转换工具类
/**
* Copyright © 2015-2016 <a href="http://www.cyou-inc.com">peace</a> All rights reserved.
*/
package com.utils;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser.Feature;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.util.JSONPObject;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
/**
* 简单封装Jackson。实现JSON String<->Java Object的Mapper.
* 封装不同的输出风格, 使用不同的builder函数创建实例.
* @author ThinkGem
* @version 2013-11-15
*/
public class JsonMapper extends ObjectMapper {
private static final long serialVersionUID = 1L;
private static Logger logger = LoggerFactory.getLogger(JsonMapper.class);
private static JsonMapper mapper;
public JsonMapper() {
this(Include.NON_EMPTY);
}
public JsonMapper(Include include) {
// 设置输出时包括属性的风格
if (include != null) {
this.setSerializationInclusion(include);
}
// 同意单引號、同意不带引號的字段名称
this.enableSimple();
// 设置输入时忽略在JSON字符串中存在但Java对象实际没有的属性
this.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
// 空值处理为空串
this.getSerializerProvider().setNullValueSerializer(new JsonSerializer<Object>(){
@Override
public void serialize(Object value, JsonGenerator jgen,
SerializerProvider provider) throws IOException,
JsonProcessingException {
jgen.writeString("");
}
});
// 进行HTML解码。
this.registerModule(new SimpleModule().addSerializer(String.class, new JsonSerializer<String>(){
@Override
public void serialize(String value, JsonGenerator jgen,
SerializerProvider provider) throws IOException,
JsonProcessingException {
jgen.writeString(StringEscapeUtils.unescapeHtml4(value));
}
}));
// 设置时区
this.setTimeZone(TimeZone.getDefault());//getTimeZone("GMT+8:00")
}
/**
* 创建仅仅输出非Null且非Empty(如List.isEmpty)的属性到Json字符串的Mapper,建议在外部接口中使用.
*/
public static JsonMapper getInstance() {
if (mapper == null){
mapper = new JsonMapper().enableSimple();
}
return mapper;
}
/**
* 创建仅仅输出初始值被改变的属性到Json字符串的Mapper, 最节约的存储方式。建议在内部接口中使用。
*/
public static JsonMapper nonDefaultMapper() {
if (mapper == null){
mapper = new JsonMapper(Include.NON_DEFAULT);
}
return mapper;
}
/**
* Object能够是POJO，也能够是Collection或数组。
* 假设对象为Null, 返回"null".
* 假设集合为空集合, 返回"[]".
*/
public String toJson(Object object) {
try {
return this.writeValueAsString(object);
} catch (IOException e) {
logger.warn("write to json string error:" + object, e);
return null;
}
}
/**
* 反序列化POJO或简单Collection如List<String>.
*
* 假设JSON字符串为Null或"null"字符串, 返回Null.
* 假设JSON字符串为"[]", 返回空集合.
*
* 如需反序列化复杂Collection如List<MyBean>, 请使用fromJson(String,JavaType)
* @see #fromJson(String, JavaType)
*/
public <T> T fromJson(String jsonString, Class<T> clazz) {
if (StringUtils.isEmpty(jsonString)) {
return null;
}
try {
return this.readValue(jsonString, clazz);
} catch (IOException e) {
logger.warn("parse json string error:" + jsonString, e);
return null;
}
}
/**
* 反序列化复杂Collection如List<Bean>, 先使用函數createCollectionType构造类型,然后调用本函数.
* @see #createCollectionType(Class, Class...)
*/
@SuppressWarnings("unchecked")
public <T> T fromJson(String jsonString, JavaType javaType) {
if (StringUtils.isEmpty(jsonString)) {
return null;
}
try {
return (T) this.readValue(jsonString, javaType);
} catch (IOException e) {
logger.warn("parse json string error:" + jsonString, e);
return null;
}
}
/**
* 構造泛型的Collection Type如:
* ArrayList<MyBean>, 则调用constructCollectionType(ArrayList.class,MyBean.class)
* HashMap<String,MyBean>, 则调用(HashMap.class,String.class, MyBean.class)
*/
public JavaType createCollectionType(Class<?> collectionClass, Class<?>... elementClasses) {
return this.getTypeFactory().constructParametricType(collectionClass, elementClasses);
}
/**
* 當JSON裡仅仅含有Bean的部分屬性時，更新一個已存在Bean，仅仅覆蓋該部分的屬性.
*/
@SuppressWarnings("unchecked")
public <T> T update(String jsonString, T object) {
try {
return (T) this.readerForUpdating(object).readValue(jsonString);
} catch (JsonProcessingException e) {
logger.warn("update json string:" + jsonString + " to object:" + object + " error.", e);
} catch (IOException e) {
logger.warn("update json string:" + jsonString + " to object:" + object + " error.", e);
}
return null;
}
/**
* 輸出JSONP格式數據.
*/
public String toJsonP(String functionName, Object object) {
return toJson(new JSONPObject(functionName, object));
}
/**
* 設定是否使用Enum的toString函數來讀寫Enum,
* 為False時時使用Enum的name()函數來讀寫Enum, 默認為False.
* 注意本函數一定要在Mapper創建後, 全部的讀寫動作之前調用.
*/
public JsonMapper enableEnumUseToString() {
this.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
this.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
return this;
}
/**
* 支持使用Jaxb的Annotation。使得POJO上的annotation不用与Jackson耦合。
* 默认会先查找jaxb的annotation，假设找不到再找jackson的。
*/
public JsonMapper enableJaxbAnnotation() {
JaxbAnnotationModule module = new JaxbAnnotationModule();
this.registerModule(module);
return this;
}
/**
* 同意单引號
* 同意不带引號的字段名称
*/
public JsonMapper enableSimple() {
this.configure(Feature.ALLOW_SINGLE_QUOTES, true);
this.configure(Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
return this;
}
/**
* 取出Mapper做进一步的设置或使用其它序列化API.
*/
public ObjectMapper getMapper() {
return this;
}
/**
* 对象转换为JSON字符串
* @param object
* @return
*/
public static String toJsonString(Object object){
return JsonMapper.getInstance().toJson(object);
}
/**
* JSON字符串转换为对象
* @param jsonString
* @param clazz
* @return
*/
public static Object fromJsonString(String jsonString, Class<?> clazz){
return JsonMapper.getInstance().fromJson(jsonString, clazz);
}
/**
* 測试
*/
public static void main(String[] args) {
List<Map<String, Object>> list = Lists.newArrayList();
Map<String, Object> map = Maps.newHashMap();
map.put("id", 1);
map.put("pId", -1);
map.put("name", "根节点");
list.add(map);
map = Maps.newHashMap();
map.put("id", 2);
map.put("pId", 1);
map.put("name", "你好");
map.put("open", true);
list.add(map);
String json = JsonMapper.getInstance().toJson(list);
System.out.println(json);
}
}
12.測试工具
package com.entity;
public class User {
private String id;
private String username;
private String password;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
package com.web;
import java.util.UUID;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.entity.User;
@Controller
public class LoginController {
/**
* 正常測试跳转
*/
@RequestMapping({"/login","/"})
public String login(Model model){
model.addAttribute("message", "OK");
return "login";
}
/**
* 自己主动封装json
*/
@ResponseBody
@RequestMapping("/json")
public User json(){
User user = new User();
user.setId(UUID.randomUUID().toString().replace("-", ""));
user.setUsername("username");
user.setPassword("password");
return user;
}
/**
* restfull请求封装
*/
@RequestMapping("/restfull/{content}")
public String restfull(@PathVariable("content")String content,Model model){
model.addAttribute("message", content);
return "login";
}
}
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
${message }<br>
</body>
</html>
