本文包含maven搭建SSM單工程、代碼自動生成、http接口測試,如果嫌文章長,可以點這裏,直接下載代碼運行。
第一部分 Maven搭建spring、springmvc、mybatis-plus(加強版mybatis)框架
1、新建maven工程
新建一個project,選擇maven project
勾選簡單項目骨架
填寫groupId、artifactId,選擇打包形式爲war
改造工程結構,選擇簡單骨架創建的工程webapp是空的,web版本也不是想要的,需要改造下。
在新建的工程上右鍵,選擇Properties-->Project Facets,然後將
處的勾點掉,接着Apply
重新選擇web版本和jdk版本,先選jdk,再改web版本,Dynamic Web Module點勾,改好後先不要Apply
然後創建web.xml並修改項目發佈路徑,點擊Further configuration availabe...
修改Content directory,內容改爲src/main/webapp,勾選Generate web.xml deployment descriptor,然後點擊OK,再點Apply和OK
到此一個maven web結構調整完畢。
1、搭建SSM框架
在項目中添加如下package目錄結構,方便代碼自動生成。在generator中創建類MpGenerator.java,用來自動生成model、dao、mapper、service、serviceImpl、controller代碼。
編寫自動生成代碼工具MpGenerator。
package com.http.common.generator;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
public class MpGenerator {
public static void main(String[] args) {
AutoGenerator ag = new AutoGenerator();
//全局配置
GlobalConfig gc = new GlobalConfig();
//點中src/main/java按下快捷鍵組合shift+alt+w選擇system explorer,雙擊進入java文件夾,在地址欄複製路徑粘貼到此處
//把粘貼的地址中\全部換成//
gc.setOutputDir("D://test-Workspace//HttpAPI//src//main//java");
gc.setFileOverride(true);// 是否覆蓋文件
gc.setActiveRecord(true);// 開啓activeRecord 模式
gc.setEnableCache(false);// XML 二級緩存
gc.setBaseResultMap(true);// XML ResultMap
gc.setBaseColumnList(true);// XML columList
gc.setAuthor("GR·cheng");
// 自定義文件命名,注意 %s 會自動填充表實體屬性!
gc.setMapperName("%sDao");
gc.setXmlName("%sMapper");
gc.setServiceName("%sService");
gc.setServiceImplName("%sServiceImpl");
gc.setControllerName("%sController");
ag.setGlobalConfig(gc);
//數據源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setDbType(DbType.MYSQL);
dsc.setDriverName("com.mysql.jdbc.Driver");
dsc.setUrl("jdbc:mysql://127.0.0.1:3306/db1?characterEncoding=utf8");
dsc.setUsername("root");
dsc.setPassword("root");
ag.setDataSource(dsc);
//生成策略
StrategyConfig sc = new StrategyConfig();
sc.containsTablePrefix("");
sc.setNaming(NamingStrategy.underline_to_camel);//表名生成策略
ag.setStrategy(sc);
PackageConfig pc = new PackageConfig();
pc.setParent("com.http");
pc.setEntity("model");
pc.setMapper("dao");
pc.setXml("mapper");
pc.setService("service");
pc.setServiceImpl("service.serviceImpl");
pc.setController("controller");
ag.setPackageInfo(pc);
ag.execute();
}
}
之後運行main函數,代碼就自動生成了
在src/main/resources中添加如下目錄結構和配置文件。
spring-mvc.xml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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:default-servlet-handler/>
<!-- Controller包(自動注入) -->
<context:component-scan base-package="com.http.controller"/>
<!-- FastJson注入 -->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<!-- 避免IE執行AJAX時,返回JSON出現下載文件 -->
<!-- FastJson -->
<bean id="fastJsonHttpMessageConverter"
class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<!-- 這裏順序不能反,一定先寫text/html,不然ie下出現下載提示 -->
<value>text/html;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
</list>
</property>
<property name="features">
<array value-type="com.alibaba.fastjson.serializer.SerializerFeature">
<!-- 避免循環引用 -->
<value>DisableCircularReferenceDetect</value>
<!-- 是否輸出值爲null的字段 -->
<value>WriteMapNullValue</value>
<!-- 數值字段如果爲null,輸出爲0,而非null -->
<value>WriteNullNumberAsZero</value>
<!-- 字符類型字段如果爲null,輸出爲"",而非null -->
<value>WriteNullStringAsEmpty</value>
<!-- List字段如果爲null,輸出爲[],而非null -->
<value>WriteNullListAsEmpty</value>
<!-- Boolean字段如果爲null,輸出爲false,而非null -->
<value>WriteNullBooleanAsFalse</value>
<!-- 設置日期封裝json格式:yyyy-MM-dd HH:mm:ss -->
<value>WriteDateUseDateFormat</value>
</array>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 靜態資源配置 -->
<mvc:resources mapping="/resources/**" location="/resources/"/>
<!-- 對模型視圖名稱的解析,即在模型視圖名稱添加前後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!-- 上傳限制 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 上傳文件大小限制爲31M,31*1024*1024 -->
<property name="maxUploadSize" value="32505856"/>
</bean>
</beans>
spring-mybatis.xml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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 配置數據源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="url" value="${jdbc_url}"/>
<property name="username" value="${jdbc_username}"/>
<property name="password" value="${jdbc_password}"/>
<!-- 初始化連接大小 -->
<property name="initialSize" value="0"/>
<!-- 連接池最大使用連接數量 -->
<property name="maxActive" value="20"/>
<!-- 連接池最大空閒 -->
<property name="maxIdle" value="20"/>
<!-- 連接池最小空閒 -->
<property name="minIdle" value="0"/>
<!-- 獲取連接最大等待時間 -->
<property name="maxWait" value="60000"/>
<property name="validationQuery" value="${validationQuery}"/>
<property name="testOnBorrow" value="false"/>
<property name="testOnReturn" value="false"/>
<property name="testWhileIdle" value="true"/>
<!-- 配置間隔多久才進行一次檢測,檢測需要關閉的空閒連接,單位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000"/>
<!-- 配置一個連接在池中最小生存的時間,單位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="25200000"/>
<!-- 打開removeAbandoned功能 -->
<property name="removeAbandoned" value="true"/>
<!-- 1800秒,也就是30分鐘 -->
<property name="removeAbandonedTimeout" value="1800"/>
<!-- 關閉abanded連接時輸出錯誤日誌 -->
<property name="logAbandoned" value="true"/>
<!-- 監控數據庫 -->
<property name="filters" value="mergeStat"/>
</bean>
<!-- Spring整合Mybatis -->
<bean id="sqlSessionFactory" class="com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 自動掃描Mapping.xml文件 -->
<property name="mapperLocations" value="classpath:com/http/mapper/*Mapper.xml"/>
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
<property name="typeAliasesPackage" value="com.http.model"/>
<property name="plugins">
<array>
<!-- 分頁插件配置 -->
<bean id="paginationInterceptor" class="com.baomidou.mybatisplus.plugins.PaginationInterceptor">
</bean>
</array>
</property>
<!-- 全局配置注入 -->
<property name="globalConfig" ref="globalConfig" />
</bean>
<bean id="globalConfig" class="com.baomidou.mybatisplus.entity.GlobalConfiguration">
<!--
AUTO->`0`("數據庫ID自增")
INPUT->`1`(用戶輸入ID")
ID_WORKER->`2`("全局唯一ID")
UUID->`3`("全局唯一ID")
-->
<property name="idType" value="2" />
<!--
MYSQL->`mysql`
ORACLE->`oracle`
DB2->`db2`
H2->`h2`
HSQL->`hsql`
SQLITE->`sqlite`
POSTGRE->`postgresql`
SQLSERVER2005->`sqlserver2005`
SQLSERVER->`sqlserver`
-->
<!-- Oracle需要添加該項 -->
<!-- <property name="dbType" value="oracle" /> -->
<!-- 全局表爲下劃線命名設置 true -->
<!-- <property name="dbColumnUnderline" value="true" /> -->
<!-- <property name="metaObjectHandler">
<bean class="com.baomidou.springmvc.common.MyMetaObjectHandler" />
</property> -->
</bean>
<!-- MyBatis 動態掃描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.http.dao"/>
</bean>
<!-- 配置事務管理 -->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 事務管理 屬性 -->
<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="append*" propagation="REQUIRED"/>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="modify*" propagation="REQUIRED"/>
<tx:method name="edit*" propagation="REQUIRED"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="remove*" propagation="REQUIRED"/>
<tx:method name="repair" propagation="REQUIRED"/>
<tx:method name="get*" propagation="REQUIRED" read-only="true"/>
<tx:method name="find*" propagation="REQUIRED" read-only="true"/>
<tx:method name="load*" propagation="REQUIRED" read-only="true"/>
<tx:method name="search*" propagation="REQUIRED" read-only="true"/>
<tx:method name="datagrid*" propagation="REQUIRED" read-only="true"/>
<tx:method name="*" propagation="REQUIRED" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 配置切面事務傳播 -->
<aop:config>
<aop:pointcut id="transactionPointcut" expression="execution(* com.http.service..*.*(..))"/>
<aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice"/>
</aop:config>
</beans>
mybatis-config.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD SQL Map Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<!--
| plugins在配置文件中的位置必須符合要求,否則會報錯,順序如下:
| properties?, settings?,
| typeAliases?, typeHandlers?,
| objectFactory?,objectWrapperFactory?,
| plugins?,
| environments?, databaseIdProvider?, mappers?
|-->
<configuration>
<!--
| 全局配置設置
|
| 可配置選項 默認值, 描述
|
| aggressiveLazyLoading true, 當設置爲‘true’的時候,懶加載的對象可能被任何懶屬性全部加載。否則,每個屬性都按需加載。
| multipleResultSetsEnabled true, 允許和不允許單條語句返回多個數據集(取決於驅動需求)
| useColumnLabel true, 使用列標籤代替列名稱。不同的驅動器有不同的作法。參考一下驅動器文檔,或者用這兩個不同的選項進行測試一下。
| useGeneratedKeys false, 允許JDBC 生成主鍵。需要驅動器支持。如果設爲了true,這個設置將強制使用被生成的主鍵,有一些驅動器不兼容不過仍然可以執行。
| autoMappingBehavior PARTIAL, 指定MyBatis 是否並且如何來自動映射數據表字段與對象的屬性。PARTIAL將只自動映射簡單的,沒有嵌套的結果。FULL 將自動映射所有複雜的結果。
| defaultExecutorType SIMPLE, 配置和設定執行器,SIMPLE 執行器執行其它語句。REUSE 執行器可能重複使用prepared statements 語句,BATCH執行器可以重複執行語句和批量更新。
| defaultStatementTimeout null, 設置一個時限,以決定讓驅動器等待數據庫迴應的多長時間爲超時
| -->
<settings>
<!-- 這個配置使全局的映射器啓用或禁用緩存 -->
<setting name="cacheEnabled" value="true"/>
<!-- 全局啓用或禁用延遲加載。當禁用時,所有關聯對象都會即時加載 -->
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="multipleResultSetsEnabled" value="true"/>
<setting name="useColumnLabel" value="true"/>
<setting name="defaultExecutorType" value="REUSE"/>
<setting name="defaultStatementTimeout" value="25000"/>
</settings>
</configuration>
spring.xml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:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<!-- 引入屬性文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- Service包(自動注入) -->
<context:component-scan base-package="com.http.service"/>
<import resource="classpath:ssm/spring-mybatis.xml"/>
</beans>
web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name>HttpAPI</display-name>
<!-- 加載Spring配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:ssm/spring.xml</param-value>
</context-param>
<!-- 字符集 過濾器 -->
<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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring監聽器 -->
<listener>
<description>Spring監聽器</description>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring內存溢出監聽器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- Spring MVC -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<description>SpringMVC</description>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:ssm/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Session超時時間 -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>
</web-app>
db.properties文件
validationQuery=SELECT 1
jdbc_url=jdbc:mysql://localhost:3306/db1?useUnicode=true&characterEncoding=UTF-8
jdbc_username=root
jdbc_password=root
log4j.properties文件
log4j.rootLogger=DEBUG,CONSOLE,A
log4j.addivity.org.apache=false
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} -%-4r [%t] %-5p %x - %m%n
log4j.appender.CONSOLE.Target=System.out
#log4j.appender.CONSOLE.charset=utf-8
log4j.appender.CONSOLE.encoding=utf-8
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.A=org.apache.log4j.DailyRollingFileAppender
log4j.appender.A.File=${catalina.home}/logs/yo_log/PurePro_
log4j.appender.A.DatePattern=yyyy-MM-dd'.log'
log4j.appender.A.layout=org.apache.log4j.PatternLayout
log4j.appender.A.layout.ConversionPattern=[FH_sys] %d{yyyy-MM-dd HH\:mm\:ss} %5p %c{1}\:%L \: %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
在webapp中添加個index.jsp。路徑對應spring-mvc.xml中配置的視圖解析路徑。Jsp中寫個著名的hello world。
Jsp內容
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
hello world
</body>
</html>
Pom.xml引入相關jar包,pom最下面的build部分如果沒有加的話,會因爲JDK版本問題引起Java Resources有個紅叉,修改相應的JDK版本號,在項目上右鍵-->Maven-->Update project...紅叉就沒有了。
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.http</groupId>
<artifactId>HttpAPI</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>4.2.5.RELEASE</spring.version>
<junit.version>4.12</junit.version>
<druid.version>1.1.0</druid.version>
<fastjson.version>1.2.8</fastjson.version>
<mybaitsplus.version>2.1-gamma</mybaitsplus.version>
<velocity.version>1.7</velocity.version>
<mysql.version>5.1.38</mysql.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.19</slf4j.version>
<aspectjweaver.version>1.8.8</aspectjweaver.version>
<fileupload.version>1.3.1</fileupload.version>
<servlet.version>2.5</servlet.version>
<jstl.version>1.2</jstl.version>
</properties>
<dependencies>
<!-- JUnit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- Spring MVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- AOP -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<!-- FileUpload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${fileupload.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- Mybatis-Plus -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>${mybaitsplus.version}</version>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>${velocity.version}</version>
</dependency>
<!-- Mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- Druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- FastJson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
<!-- Log -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
稍微改造下SysUserController,使項目訪問根目錄進入index.jsp。
package com.http.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.stereotype.Controller;
/**
* <p>
* 系統用戶表 前端控制器
* </p>
*
* @author GR·cheng
* @since 2017-11-17
*/
@Controller
@RequestMapping("/")
public class SysUserController {
@RequestMapping("/")
public ModelAndView index(ModelAndView modelAndView) {
modelAndView.setViewName("index");
return modelAndView;
}
}
將項目添加到tomcat服務器
雙擊服務器,修改下項目訪問名
保存並啓動服務器,在瀏覽器中訪問localhost:8080
然後在controller中寫個簡單的查詢,瀏覽器訪問下
package com.http.controller;
import java.util.List;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.http.model.SysUser;
import com.http.service.SysUserService;
/**
* <p>
* 系統用戶表 前端控制器
* </p>
*
* @author GR·cheng
* @since 2017-11-17
*/
@Controller
@RequestMapping("/")
public class SysUserController {
@Autowired
private SysUserService userService;
@RequestMapping("/")
public ModelAndView index(ModelAndView modelAndView) {
modelAndView.setViewName("index");
return modelAndView;
}
@RequestMapping("/users")
@ResponseBody
public List<SysUser> users() {
return userService.selectList(null);
}
}
在瀏覽器中訪問下http://localhost:8080/users,看到頁面接收到的JSON數據說明框架一切OK了。
第二部分 使用HTTP工具類測試HTTP接口
1、新建HttpUtil.java,HttpTest.java。
2、controller中寫幾個http測試接口。
package com.http.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSON;
import com.http.common.util.DateUtil;
import com.http.model.SysUser;
import com.http.service.SysUserService;
/**
* <p>
* 系統用戶表 前端控制器
* </p>
*
* @author GR·cheng
* @since 2017-11-17
*/
@Controller
@RequestMapping("/")
public class SysUserController {
@Autowired
private SysUserService userService;
/**
*
*
* @Title: index
* @Description: 項目根目錄訪問index.jsp
* @param: @param modelAndView
* @param: @return
* @return: ModelAndView
* @user: GR·cheng
*
*/
@RequestMapping("/")
public ModelAndView index(ModelAndView modelAndView) {
modelAndView.setViewName("index");
return modelAndView;
}
/**
*
*
* @Title: users
* @Description: 查詢所有users
* @param: @return
* @return: List<SysUser>
* @user: GR·cheng
*
*/
@ResponseBody
@RequestMapping("/users")
public List<SysUser> users() {
List<SysUser> users = userService.selectList(null);
return users;
}
/**
*
*
* @Title: getParams
* @Description: get方法提交
* @param: @param id
* @param: @param name
* @param: @param age
* @param: @param ctime
* @param: @return
* @return: SysUser
* @user: GR·cheng
*
*/
@ResponseBody
@RequestMapping(value = "/API/getParams",method = RequestMethod.GET)
public static SysUser getParams(Long id,String name,Integer age,String ctime) {
SysUser user = new SysUser();
user.setId(id);
user.setName(name);
user.setAge(age);
user.setCtime(DateUtil.stringToDate(ctime,DateUtil.DATE_TEMPLATE_COMPLETE));
return user;
}
/**
*
*
* @Title: postParams
* @Description: post方法提交
* @param: @param id
* @param: @param name
* @param: @param age
* @param: @param ctime
* @param: @return
* @return: SysUser
* @user: GR·cheng
*
*/
@ResponseBody
@RequestMapping(value = "/API/postParams",method = RequestMethod.POST)
public static SysUser postParams(Long id,String name,Integer age,String ctime) {
SysUser user = new SysUser();
user.setId(id);
user.setName(name);
user.setAge(age);
user.setCtime(DateUtil.stringToDate(ctime,DateUtil.DATE_TEMPLATE_COMPLETE));
return user;
}
/**
*
*
* @Title: postJson
* @Description: post方法提交json數據
* @param: @param param
* @param: @return
* @return: SysUser
* @user: GR·cheng
*
*/
@ResponseBody
@RequestMapping(value = "/API/postJson",method = RequestMethod.POST)
public static SysUser postJson(@RequestBody String param) {
SysUser user = JSON.parseObject(param, SysUser.class);
return user;
}
}
3、編寫http工具類HttpUtil
package com.http.common.util;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
public class HttpUtil {
/**
*
*
* @Title: getParams
* @Description: HTTP GET 請求
* @param: @param uri 請求地址
* @param: @param params 參數串
* @param: @return
* @return: String
* @user: GR·cheng
*
*/
public static String getParams(String uri, String params) {
String result = "";
BufferedReader reader = null;
StringBuffer url = new StringBuffer();
try {
url.append(uri);
url.append("?");
url.append(params);// get的參數 xx=xx&yy=yy
URL realUrl = new URL(url.toString());
// 打開和URL之間的連接
URLConnection connection = realUrl.openConnection();
// 設置通用的請求屬性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("Content-Type","text/html; charset=utf-8");
connection.setRequestProperty("Charset", "UTF-8");
connection.connect();
// 定義 BufferedReader輸入流來讀取URL的響應
reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
StringBuffer buffer = new StringBuffer();
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
result = buffer.toString();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
/**
*
*
* @Title: postParams
* @Description: HTTP POST 請求
* @param: @param uri 請求地址
* @param: @param params 參數串
* @param: @return
* @return: String
* @user: GR·cheng
*
*/
public static String postParams(String uri, String params) {
URL url = null;
String result = null;
try {
url = new URL(uri);
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
connection.setRequestMethod("POST");
// 發送POST請求必須設置如下兩行
connection.setDoOutput(true);
connection.setDoInput(true);
// 獲取URLConnection對象對應的輸出流
PrintWriter printWriter = new PrintWriter(
connection.getOutputStream());
// 發送請求參數
printWriter.write(params);// post的參數 xx=xx&yy=yy
// flush輸出流的緩衝
printWriter.flush();
// 開始獲取數據
BufferedReader reader = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
result = reader.readLine();
reader.close();
connection.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
*
*
* @Title: postJson
* @Description: HTTP POST請求方式提交JSON數據
* @param: @param uri 請求地址
* @param: @param object JSONObject
* @param: @return
* @param: @throws IOException
* @return: String
* @user: GR·cheng
*
*/
public static String postJson(String uri, JSONObject object) {
String result = null;
try {
// 創建url資源
URL url = new URL(uri);
// 建立http連接
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
// 設置允許輸出
connection.setDoOutput(true);
// 設置允許輸入
connection.setDoInput(true);
// 設置傳遞方式POST
connection.setRequestMethod("POST");
// 設置不用緩存
connection.setUseCaches(false);
// 設置本次連接是否自動處理重定向
connection.setInstanceFollowRedirects(true);
// 設置文本類型
connection.setRequestProperty("Content-Type",
"application/json;charset=UTF-8");
// 設置維持長連接
connection.setRequestProperty("Connection", "Keep-Alive");
// 設置文本字符集
connection.setRequestProperty("Charset", "UTF-8");
// 轉換爲字節數組
byte[] json = (JSON.toJSONString(object)).getBytes();
// 設置文本長度
connection.setRequestProperty("Content-Length",
String.valueOf(json.length));
// 開始連接請求
connection.connect();
DataOutputStream out = new DataOutputStream(
connection.getOutputStream());
out.write(json);
out.flush();
out.close();
int code = connection.getResponseCode();
if (HttpURLConnection.HTTP_OK == code) {
BufferedReader reader = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
result = reader.readLine();
reader.close();
}
connection.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result;
}
}
4、寫個測試類測試下
package com.http.test;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.http.common.util.DateUtil;
import com.http.common.util.HttpUtil;
import com.http.model.SysUser;
public class HttpTest {
private static String getParams = "http://localhost:8080/API/getParams";
private static String postParams = "http://localhost:8080/API/postParams";
private static String postJson = "http://localhost:8080/API/postJson";
public static void main(String[] args) {
testGetParams();
testPostParams();
testPostJson();
}
public static void testGetParams() {
StringBuffer param = new StringBuffer();
try {
param.append("id=784972358981328902&name=");
param.append(URLEncoder.encode("奈文摩爾","UTF-8"));
param.append("&age=20");
param.append("&ctime=");
param.append(URLEncoder.encode("2017-11-11 11:11:11","UTF-8"));//get提交的參數是在url中的,帶有空格的參數必須轉譯
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String result = HttpUtil.getParams(getParams, param.toString());
System.out.println(result);
}
public static void testPostParams() {
StringBuffer param = new StringBuffer();
try {
param.append("id=784972358981328902&name=");
param.append(URLEncoder.encode("奈文摩爾","UTF-8"));
param.append("&age=20");
param.append("&ctime=2017-11-11 11:11:11");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String result = HttpUtil.postParams(postParams, param.toString());
System.out.println(result);
}
public static void testPostJson() {
SysUser user = new SysUser();
user.setId(784972358981328902L);
user.setName("奈文摩爾");
user.setAge(20);
user.setCtime(DateUtil.stringToDate("2017-11-11 11:11:11",DateUtil.DATE_TEMPLATE_COMPLETE));
JSONObject jsonObject = (JSONObject) JSON.toJSON(user);
String result = HttpUtil.postJson(postJson, jsonObject);
System.out.println(result);
}
}
5、啓動項目,運行下HttpTest中的main函數
結果返回都正確,一切OK。