Maven搭建SSM框架测试HTTP 接口

本文包含maven搭建SSM单工程、代码自动生成、http接口测试，如果嫌文章长，可以点这里，直接下载代码运行。

第一部分 Maven搭建spring、springmvc、mybatis-plus（加强版mybatis）框架

1、新建maven工程

新建一个project，选择maven project




勾选简单项目骨架




填写groupId、artifactId，选择打包形式为war



改造工程结构，选择简单骨架创建的工程webapp是空的，web版本也不是想要的，需要改造下。



在新建的工程上右键，选择Properties-->Project Facets,然后将


处的勾点掉，接着Apply



重新选择web版本和jdk版本，先选jdk，再改web版本，Dynamic
Web Module点勾，改好后先不要Apply



然后创建web.xml并修改项目发布路径，点击Further configuration availabe...



修改Content directory，内容改为src/main/webapp，勾选Generate web.xml deployment descriptor，然后点击OK，再点Apply和OK



到此一个maven web结构调整完毕。



1、搭建SSM框架

在项目中添加如下package目录结构，方便代码自动生成。在generator中创建类MpGenerator.java，用来自动生成model、dao、mapper、service、serviceImpl、controller代码。



编写自动生成代码工具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.myba
4000
tisplus.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();

//点中src/main/java按下快捷键组合shift+alt+w选择system explorer,双击进入java文件夹，在地址栏复制路径粘贴到此处
//把粘贴的地址中\全部换成//
gc.setOutputDir("D://test-Workspace//HttpAPI//src//main//java");
gc.setFileOverride(true);// 是否覆盖文件
gc.setActiveRecord(true);// 开启activeRecord 模式
gc.setEnableCache(false);// XML 二级缓存
gc.setBaseResultMap(true);// XML ResultMap
gc.setBaseColumnList(true);// XML columList
gc.setAuthor("GR·cheng");

// 自定义文件命名，注意 %s 会自动填充表实体属性！
gc.setMapperName("%sDao");
gc.setXmlName("%sMapper");
gc.setServiceName("%sService");
gc.setServiceImplName("%sServiceImpl");
gc.setControllerName("%sController");

ag.setGlobalConfig(gc);

//数据源配置
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();
}

}

之后运行main函数，代码就自动生成了



在src/main/resources中添加如下目录结构和配置文件。



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(自动注入) -->
<context:component-scan base-package="com.http.controller"/>

<!-- FastJson注入 -->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
<!-- FastJson -->
<bean id="fastJsonHttpMessageConverter"
class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<!-- 这里顺序不能反，一定先写text/html,不然ie下出现下载提示 -->
<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">
<!-- 避免循环引用 -->
<value>DisableCircularReferenceDetect</value>
<!-- 是否输出值为null的字段 -->
<value>WriteMapNullValue</value>
<!-- 数值字段如果为null,输出为0,而非null -->
<value>WriteNullNumberAsZero</value>
<!-- 字符类型字段如果为null,输出为"",而非null  -->
<value>WriteNullStringAsEmpty</value>
<!-- List字段如果为null,输出为[],而非null -->
<value>WriteNullListAsEmpty</value>
<!-- Boolean字段如果为null,输出为false,而非null -->
<value>WriteNullBooleanAsFalse</value>
<!-- 设置日期封装json格式:yyyy-MM-dd HH:mm:ss -->
<value>WriteDateUseDateFormat</value>
</array>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>

<!-- 静态资源配置 -->
<mvc:resources mapping="/resources/**" location="/resources/"/>

<!-- 对模型视图名称的解析,即在模型视图名称添加前后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>

<!-- 上传限制 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 上传文件大小限制为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"> 
<!-- 配置数据源 -->
<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}"/>

<!-- 初始化连接大小 -->
<property name="initialSize" value="0"/>
<!-- 连接池最大使用连接数量 -->
<property name="maxActive" value="20"/>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="20"/>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="0"/>
<!-- 获取连接最大等待时间 -->
<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"/>

<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000"/>
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="25200000"/>
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="true"/>
<!-- 1800秒，也就是30分钟 -->
<property name="removeAbandonedTimeout" value="1800"/>
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="true"/>
<!-- 监控数据库 -->
<property name="filters" value="mergeStat"/>
</bean>

<!-- Spring整合Mybatis -->
<bean id="sqlSessionFactory" class="com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 自动扫描Mapping.xml文件 -->
<property name="mapperLocations" value="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>
<!-- 分页插件配置 -->
<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`("数据库ID自增")
INPUT->`1`(用户输入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需要添加该项 -->
<!-- <property name="dbType" value="oracle" /> -->
<!-- 全局表为下划线命名设置 true -->
<!-- <property name="dbColumnUnderline" value="true" /> -->
<!-- <property name="metaObjectHandler">
<bean class="com.baomidou.springmvc.common.MyMetaObjectHandler" />
</property> -->
</bean>

<!-- MyBatis 动态扫描  -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.http.dao"/>
</bean>

<!-- 配置事务管理 -->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

<!-- 事务管理 属性 -->
<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>

<!-- 配置切面事务传播 -->
<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须符合要求，否则会报错，顺序如下:
|   properties?, settings?,
|   typeAliases?, typeHandlers?,
|   objectFactory?,objectWrapperFactory?,
|   plugins?,
|   environments?, databaseIdProvider?, mappers?
|-->
<configuration>
<!--
| 全局配置设置
|
| 可配置选项                   默认值,     描述
|
| aggressiveLazyLoading       true,     当设置为‘true’的时候，懒加载的对象可能被任何懒属性全部加载。否则，每个属性都按需加载。
| multipleResultSetsEnabled   true,     允许和不允许单条语句返回多个数据集（取决于驱动需求）
| useColumnLabel              true,     使用列标签代替列名称。不同的驱动器有不同的作法。参考一下驱动器文档，或者用这两个不同的选项进行测试一下。
| useGeneratedKeys            false,    允许JDBC 生成主键。需要驱动器支持。如果设为了true，这个设置将强制使用被生成的主键，有一些驱动器不兼容不过仍然可以执行。
| autoMappingBehavior         PARTIAL,  指定MyBatis 是否并且如何来自动映射数据表字段与对象的属性。PARTIAL将只自动映射简单的，没有嵌套的结果。FULL 将自动映射所有复杂的结果。
| defaultExecutorType         SIMPLE,   配置和设定执行器，SIMPLE 执行器执行其它语句。REUSE 执行器可能重复使用prepared statements 语句，BATCH执行器可以重复执行语句和批量更新。
| defaultStatementTimeout     null,     设置一个时限，以决定让驱动器等待数据库回应的多长时间为超时
| -->
<settings>
<!-- 这个配置使全局的映射器启用或禁用缓存 -->
<setting name="cacheEnabled" value="true"/>
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载 -->
<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.sprin 10344
gframework.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">

<!-- 引入属性文件 -->
<context:property-placeholder location="classpath:db.properties"/>

<!-- Service包(自动注入) -->
<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>

<!-- 加载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 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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- Spring监听器 -->
<listener>
<description>Spring监听器</description>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring内存溢出监听器 -->
<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超时时间 -->
<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中添加个index.jsp。路径对应spring-mvc.xml中配置的视图解析路径。Jsp中写个著名的hello
world。



Jsp内容

<%@ 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引入相关jar包，pom最下面的build部分如果没有加的话，会因为JDK版本问题引起Java
Resources有个红叉，修改相应的JDK版本号，在项目上右键-->Maven-->Update
project...红叉就没有了。

<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，使项目访问根目录进入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>
* 系统用户表 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;
}

}

将项目添加到tomcat服务器

双击服务器，修改下项目访问名



保存并启动服务器，在浏览器中访问localhost:8080



然后在controller中写个简单的查询，浏览器访问下

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>
* 系统用户表 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);
}

}

在浏览器中访问下http://localhost:8080/users，看到页面接收到的JSON数据说明框架一切OK了。

第二部分
使用HTTP工具类测试HTTP接口

1、新建HttpUtil.java，HttpTest.java。



2、controller中写几个http测试接口。

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>
* 系统用户表 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: 项目根目录访问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: 查询所有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数据
* @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、编写http工具类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 请求
* @param: @param uri 请求地址
* @param: @param params 参数串
* @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的参数 xx=xx&yy=yy
URL realUrl = new URL(url.toString());
// 打开和URL之间的连接
URLConnection connection = realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("Content-Type","text/html; charset=utf-8");
connection.setRequestProperty("Charset", "UTF-8");
connection.connect();
// 定义 BufferedReader输入流来读取URL的响应
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 请求
* @param: @param uri 请求地址
* @param: @param params 参数串
* @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");
// 发送POST请求必须设置如下两行
connection.setDoOutput(true);
connection.setDoInput(true);
// 获取URLConnection对象对应的输出流
PrintWriter printWriter = new PrintWriter(
connection.getOutputStream());
// 发送请求参数
printWriter.write(params);// post的参数 xx=xx&yy=yy
// flush输出流的缓冲
printWriter.flush();
// 开始获取数据
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请求方式提交JSON数据
* @param: @param uri 请求地址
* @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 {
// 创建url资源
URL url = new URL(uri);
// 建立http连接
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
// 设置允许输出
connection.setDoOutput(true);
// 设置允许输入
connection.setDoInput(true);
// 设置传递方式POST
connection.setRequestMethod("POST");
// 设置不用缓存
connection.setUseCaches(false);
// 设置本次连接是否自动处理重定向
connection.setInstanceFollowRedirects(true);
// 设置文本类型
connection.setRequestProperty("Content-Type",
"application/json;charset=UTF-8");
// 设置维持长连接
connection.setRequestProperty("Connection", "Keep-Alive");
// 设置文本字符集
connection.setRequestProperty("Charset", "UTF-8");
// 转换为字节数组
byte[] json = (JSON.toJSONString(object)).getBytes();
// 设置文本长度
connection.setRequestProperty("Content-Length",
String.valueOf(json.length));
// 开始连接请求
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、写个测试类测试下

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("奈文摩尔","UTF-8"));
param.append("&age=20");
param.append("&ctime=");
param.append(URLEncoder.encode("2017-11-11 11:11:11","UTF-8"));//get提交的参数是在url中的，带有空格的参数必须转译
} 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("奈文摩尔","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("奈文摩尔");
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、启动项目，运行下HttpTest中的main函数



结果返回都正确，一切OK。