spring mvc 集成mongoDB项目 例子
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这个pom内容有点多,有的可以不用
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.rui.mong</groupId> <artifactId>mongos</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>mongos Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <org.springframework-version>4.0.6.RELEASE</org.springframework-version> <org.hibernate-version>4.3.1.Final</org.hibernate-version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <!-- 依赖 管理 --> <dependencies> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>1.4.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-commons-core</artifactId> <version>1.4.1.RELEASE</version> </dependency> <!-- <dependency> --> <!-- <groupId>org.springframework.data</groupId> --> <!-- <artifactId>spring-data-mongodb</artifactId> --> <!-- <version>1.5.4.RELEASE</version> --> <!-- </dependency> --> <!-- spring jar --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${org.springframework-version}</version> <!-- Exclude Commons Logging in favor of SLF4j --> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${org.springframework-version}</version> </dependency> <!-- hiberante 4 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>${org.hibernate-version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>${org.hibernate-version}</version> </dependency> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.0.0.GA</version> <scope>provided</scope> </dependency> <!--enable hibernate to use its proxy model --> <!-- <dependency> <groupId>org.javassist</groupId> <artifactId>javassist</artifactId> <version>3.18.1-GA</version> </dependency> --> <!-- jpa 注解 --> <!-- <dependency> <groupId>org.hibernate</groupId> <artifactId>ejb3-persistence</artifactId> <version>3.3.2.Beta1</version> </dependency> --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>${org.hibernate-version}</version> </dependency> <!-- <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.5.6-Final</version> </dependency> --> <!-- <version>3.4.0.GA</version> --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-dbcp2</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.1</version> </dependency> <!-- <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.0.2</version> </dependency> --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.2.4</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> <scope>provided</scope> </dependency> <!-- jackson --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.1.0</version> </dependency> <!-- <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-core-asl</artifactId> <version>1.9.13</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> --> <dependency> <groupId>cglib</groupId> <artifactId>cglib-nodep</artifactId> <version>2.2.2</version> </dependency> <dependency> <groupId>javax.servlet.jsp.jstl</groupId> <artifactId>jstl-api</artifactId> <version>1.2</version> </dependency> </dependencies> <build> <finalName>mongos</finalName> </build> </project>
spring mvc config
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tool="http://www.springframework.org/schema/tool" 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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 启用spring mvc 注解 --> <!-- <context:annotation-config /> <mvc:annotation-driven /> <mvc:default-servlet-handler /> --> <!-- 静态资源访问 --> <mvc:resources mapping="/fornt/**" location="/fornt/" /> <mvc:resources mapping="index.*" location="/" /> <mvc:resources mapping="login.*" location="/" /> <!--页面视图层信息 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/"></property> <!--页面的前辍名 --> <property name="suffix" value=".html"></property> <!-- <property name="suffix" value=".jsp"></property> --> <!--页面的后辍名 --> </bean> <!-- 启动 Spring MVC 的注解功能,完成请求和注解 POJO 的映射 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.StringHttpMessageConverter" /> </list> </property> </bean> --> <!-- 获取bean --> <!-- <bean id="sysApplicationContext" class="com.rui.pro.utils.sys.SysApplicationContext"> --> <!-- </bean> --> </beans>
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tool="http://www.springframework.org/schema/tool" 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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd"> <!-- 注解扫描 com.rui.pro/** **.dao.***,**.service.***,**.controller.** --> <!-- com.rui.pro.dao.*.impl/**,com.rui.pro.service.*.impl/**,com.rui.pro.controller/** --> <context:component-scan base-package=" **.dao.***,**.service.***,**.controller.**"/> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"> <property name="order" value="0" /> </bean> <bean id="messageAdapter" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" /> </list> </property> </bean> <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" /> <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter" /> <bean id="exceptionMessageAdapter" class="org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver"> <property name="messageConverters"> <list> <!-- Support JSON MappingJacksonHttpMessageConverter --> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" /> </list> </property> </bean> </beans>
spirng mongodb config
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tool="http://www.springframework.org/schema/tool" 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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd"> <context:property-placeholder location="classpath:sysconfig/properties/mongodb.properties" /> <!-- <mongo:mongo id="mongo" replica-set="127.0.0.1:27017"> --> <!-- <mongo:options connections-per-host="100" --> <!-- threads-allowed-to-block-for-connection-multiplier="100" --> <!-- connect-timeout="60000" max-wait-time="30000" auto-connect-retry="true" --> <!-- socket-keep-alive="false" socket-timeout="60000" slave-ok="true" --> <!-- write-number="1" write-timeout="0" write-fsync="true" /> --> <!-- </mongo:mongo> --> <!-- <mongo:db-factory id="mongoDbFactory" dbname="rui" --> <!-- mongo-ref="mongo" /> --> <!-- <mongo:mapping-converter id="mongoConverter" --> <!-- base-package="org.rui.mongo.bean" /> --> <!-- <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> --> <!-- <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" /> --> <!-- <constructor-arg name="mongoConverter" ref="mongoConverter" /> --> <!-- </bean> --> <mongo:mongo id="mongo" host="localhost" port="27017"> <mongo:options connections-per-host="8" threads-allowed-to-block-for-connection-multiplier="4" connect-timeout="1000" max-wait-time="1500" auto-connect-retry="true" socket-keep-alive="true" socket-timeout="1500" slave-ok="true" write-number="1" write-timeout="0" write-fsync="true" /> </mongo:mongo> <mongo:db-factory id="mongoDbFactory" dbname="rui" mongo-ref="mongo" /> <mongo:mapping-converter base-package="org.rui.mongo.bean" id="mongoConverter" /> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" /> <constructor-arg name="mongoConverter" ref="mongoConverter" /> </bean> <mongo:repositories base-package="org.rui.mongo.bean" /> <bean id="userDao" class="org.rui.mongo.dao.impl.UserDaoImpl"> <property name="mongoTemplate" ref="mongoTemplate" /> </bean> <!-- 使用annotation定义事务 --> <!-- <tx:annotation-driven transaction-manager="transactionManager" /> --> <!-- 扫描实现 --> <context:annotation-config /> </beans>
log4j.properties
##OFF\FATAL\ERROR\WARN\INFO\DEBUG\ALL log4j.rootLogger=info,sysConsole,rollingFile log4j.appender.sysConsole=org.apache.log4j.ConsoleAppender log4j.appender.sysConsole.Target=System.out log4j.appender.sysConsole.layout=org.apache.log4j.PatternLayout #%l%n %20.30c log4j.appender.sysConsole.layout.ConversionPattern=rui-%-8p%-10d{yyyy-MM-dd HH\:mm\:ss.S} %-10t %c{1} %3x%m%n ###########fileLog ronlling ###################### log4j.appender.rollingFile=org.apache.log4j.RollingFileAppender log4j.appender.rollingFile.Threshold=WARN #${catalina.home} webappkey sys-core webapp.root log4j.appender.rollingFile.file=#${webapp.root}/log/sys.log log4j.appender.rollingFile.Append=true log4j.appender.rollingFile.MaxFileSize=20MB log4j.appender.rollingFile.MaxBackupIndex=6 log4j.appender.rollingFile.layout=org.apache.log4j.PatternLayout log4j.appender.rollingFile.layout.ConversionPattern=rui-%-8p%-10d{yyyy-MM-dd HH\:mm\:ss.S} %-10t %c{1} %3x%m%n #log4j.appender.ROLLING_FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n ###### pack all set lvel # Print or not print the specified package #log4j.logger.cn.com.systec.schedul=ERROR #log4j.logger.cn.com.systec.utils=debug #log4j.logger.org.hibernate.SQL=INFO ###########fileLog simple ###################### #log4j.appender.fileLog=org.apache.log4j.DailyRollingFileAppender #log4j.appender.fileLog.file=log4j/hd_service.log #log4j.appender.fileLog.layout=org.apache.log4j.SimpleLayout log4j.category.org.springframework.data.document.mongodb=DEBUG log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %40.40c:%4L - %m%n
热身动动
package org.rui.mongos; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.rui.mongo.bean.User; import org.springframework.data.mongodb.core.MongoOperations; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.data.mongodb.core.SimpleMongoDbFactory; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.Query; import com.mongodb.Mongo; /** * main spring 简单mongodb 操作 * http://docs.spring.io/spring-data/data-mongo/docs/1.6.2.RELEASE/reference/html/ * */ public class Main { // log4j.category.org.springframework.data.document.mongodb=DEBUG // log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p // %40.40c:%4L - %m%n private static final Log log = LogFactory.getLog(Main.class); public static void main(String[] args) throws Exception { MongoOperations mongoOps = new MongoTemplate(new SimpleMongoDbFactory(new Mongo(), "rui")); //MongoOperations mongoOps = new MongoTemplate(new Mongo(), "rui"); mongoOps.insert(new User(1, "Joe", 34)); log.info(mongoOps.findOne(new Query(new Criteria("name").is("Joe")), User.class)); //mongoOps.dropCollection("user"); } } /** * output: * rui-INFO 2015-01-29 16:57:59.74 main Main User [id=54c9f6034c7147de6e158756, userId=1, name=Joe, age=34] */
package org.rui.mongo.dao.impl; import java.util.List; import org.rui.mongo.bean.User; import org.rui.mongo.dao.UserDao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.data.mongodb.core.MongoOperations; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.Query; import org.springframework.data.mongodb.core.query.Update; import org.springframework.stereotype.Repository; @Repository public class UserDaoImpl implements UserDao { private MongoOperations mongoTemplate; // @Autowired // @Qualifier("mongoTemplate") public void setMongoTemplate(MongoOperations mongoTemplate) { this.mongoTemplate = mongoTemplate; } public List<User> get() { List<User> user = mongoTemplate.findAll(User.class); return user; } public User getOne(Integer id) { User user = mongoTemplate.findOne(new Query(Criteria.where("userId") .is(id)), User.class); return user; } public void findAndModify(Integer id, Integer age) { mongoTemplate.updateFirst(new Query(Criteria.where("userId").is(id)), new Update().inc("age", age), User.class); } public void insert(User u) { mongoTemplate.insert(u); } public void removeOne(Integer id) { Criteria criteria = Criteria.where("userId").in(id); if (criteria != null) { Query query = new Query(criteria); if (query != null && mongoTemplate.findOne(query, User.class) != null) mongoTemplate.remove(mongoTemplate.findOne(query, User.class)); } } /** * 修改多条 <br> * ------------------------------<br> * * @param criteriaUser * @param user */ public void update(User criteriaUser, User user) { Criteria criteria = Criteria.where("age").gt(criteriaUser.getAge()); ; Query query = new Query(criteria); Update update = Update.update("name", user.getName()).set("age", user.getAge()); mongoTemplate.updateMulti(query, update, User.class); } /** * 按条件查询, 分页 <br> * ------------------------------<br> * * @param criteriaUser * @param skip * @param limit * @return */ public List<User> find(User criteriaUser, int skip, int limit) { Query query = getQuery(criteriaUser); query.skip(skip); query.limit(limit); return mongoTemplate.find(query, User.class); } /** * 根据条件查询出来后 再去修改 <br> * ------------------------------<br> * * @param criteriaUser * 查询条件 * @param updateUser * 修改的值对象 * @return */ public User findAndModify(User criteriaUser, User updateUser) { Query query = getQuery(criteriaUser); Update update = Update.update("age", updateUser.getAge()).set("name", updateUser.getName()); return mongoTemplate.findAndModify(query, update, User.class); } /** * 查询出来后 删除 <br> * ------------------------------<br> * * @param criteriaUser * @return */ public User findAndRemove(User criteriaUser) { Query query = getQuery(criteriaUser); return mongoTemplate.findAndRemove(query, User.class); } /** * count <br> * ------------------------------<br> * * @param criteriaUser * @return */ public long count(User criteriaUser) { Query query = getQuery(criteriaUser); return mongoTemplate.count(query, User.class); } /** * * <br> * ------------------------------<br> * * @param criteriaUser * @return */ private Query getQuery(User criteriaUser) { if (criteriaUser == null) { criteriaUser = new User(); } Query query = new Query(); if (criteriaUser.getId() != null) { Criteria criteria = Criteria.where("userId").is(criteriaUser.getId()); query.addCriteria(criteria); } if (criteriaUser.getAge() > 0) { Criteria criteria = Criteria.where("age").gt(criteriaUser.getAge()); query.addCriteria(criteria); } if (criteriaUser.getName() != null) { Criteria criteria = Criteria.where("name").regex( "^" + criteriaUser.getName()); query.addCriteria(criteria); } return query; } }
接口
package org.rui.mongo.dao; import java.util.List; import org.rui.mongo.bean.User; public interface UserDao { List<User> get(); User getOne(Integer id); /** * 通过ID找到并修改 */ public void findAndModify(Integer id, Integer age); void insert(User u); void removeOne(Integer id); }
junit test
package org.rui.mongos; import java.util.List; import org.junit.BeforeClass; import org.junit.Test; import org.rui.mongo.bean.User; import org.rui.mongo.dao.UserDao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; //"classpath:sysconfig/springmvc/spring-mvc.xml", @org.junit.runner.RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = { "classpath:sysconfig/spring/db.xml" }) public class UserTest { @BeforeClass public static void setUpBeforeClass() throws Exception { } @Autowired UserDao userDao; /** * 查询 * **/ @Test public void getAll() { List<User> list = userDao.get(); System.out.println("list:" + list); User user = userDao.getOne(1); System.out.println("user:" + user); } @Test public void findAndUpdate(){ userDao.findAndModify(1, 10); } @Test public void insert(){ User user=new User(); user.setUserId(1); user.setName("hello"); user.setAge(100); userDao.insert(user); } @Test public void removeOne(){ userDao.removeOne(1); } }
spring mvc 页面
package org.rui.mongo.controller; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.rui.mongo.bean.User; import org.rui.mongo.dao.UserDao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; @Controller @RequestMapping("user") public class UserController { @Autowired UserDao userDao; public void setUserDao(UserDao userDao) { this.userDao = userDao; } @RequestMapping("test") @ResponseBody public String test(){ return "hello"; } @ResponseBody @RequestMapping("get") public List<User> get(HttpServletRequest request,HttpServletResponse response){ List<User> user=userDao.get(); System.out.println(this.getClass().getName()+":"+user); return user; } }
一个简单的结果 搞了半天
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