工程结构
//下面是全部的代码,最下面时错误日志。第一次提问,不知道插入代码片的格式是不是这样的,跪求大神指导,已经看了很多解决方案,但都无法解决我的问题,注释掉Autowired或者@注释掉Autowired(required=false)虽然可以启动项目,但是程序执行时又会发生错误,问题是逃避不了的。再次跪求大神指导。
//controller
package controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
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.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import bean.AppMessage;
import service.AppMessageService;
@RestController
@RequestMapping("/appmessage")
public class AppMessageController {
@Autowired/*(required=false)*/
private AppMessageService service;
@RequestMapping("/getThree")
public List<AppMessage> getThreeForMessage(){
List<AppMessage> list = service.getMessage();
return list;
}
@RequestMapping("/getAll")
public List<AppMessage> getAllMessage(){
List<AppMessage> list = service.getAllMessage();
int num = list.size();
if(null!=list && num>3){
for (int i = 0; i < num-3; i++) {
list.remove(0);
}
}
return list;
}
@RequestMapping("/getByID")
public List<AppMessage> getMessageById(@RequestParam("id") String id){
List<AppMessage> list = service.getMessageById(id);
int num = list.size();
if(null!=list && num>5){
for (int i = 0; i < num-5; i++) {
list.remove(0);
}
}
return list;
}
@RequestMapping(value = "/add",method = RequestMethod.POST)
public int addMessage(@RequestBody AppMessage appMessage){
return service.addMessage(appMessage);
}
@RequestMapping(value="/delMessageById",method=RequestMethod.POST)
public int delMessageById(@RequestParam("id") String id){
return service.delMessage(id);
}
}
//Service
package service;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import bean.AppMessage;
import mapper.AppMessageMapper;
@Transactional
@Service("appMessageService")
public class AppMessageService {
@Autowired
private AppMessageMapper mapper;
public List<AppMessage> getMessage(){
List<AppMessage> list = new ArrayList<AppMessage>();
list.add(mapper.selectByPrimaryKey("xtt"));
//list = mapper.selectAll();
return list;
}
public List<AppMessage> getAllMessage(){
List<AppMessage> list = new ArrayList<AppMessage>();
list = mapper.selectAll();
return list;
}
public int addMessage(AppMessage appMessage) {
return mapper.insert(appMessage);
}
public List<AppMessage> getMessageById(String id) {
return mapper.getMessById(id);
}
public int delMessage(String id) {
return mapper.deleteByPrimaryKey(id);
}
}
//Mapper 接口,映射到mapper.xml
package mapper;
import java.util.List;
import bean.AppMessage;
public interface AppMessageMapper {
int deleteByPrimaryKey(String id);
int insert(AppMessage record);
int insertSelective(AppMessage record);
AppMessage selectByPrimaryKey(String id);
int updateByPrimaryKeySelective(AppMessage record);
int updateByPrimaryKey(AppMessage record);
List<AppMessage> selectAll();
List<AppMessage> getMessById(String id);
}
<!-- Mapper.xml文件 -->
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="mapper.AppMessageMapper" > <!-- 对应mapper接口的位置 -->
<resultMap id="BaseResultMap" type="bean.AppMessage" >
<id column="id" property="id" jdbcType="VARCHAR" />
<result column="message" property="message" jdbcType="VARCHAR" />
<result column="senddate" property="senddate" jdbcType="TIMESTAMP" />
</resultMap>
<sql id="Base_Column_List" >
id, message, senddate
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" >
select
<include refid="Base_Column_List" />
from appuser_message
where id = #{id,jdbcType=VARCHAR}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.String" >
delete from appuser_message
where id = #{id,jdbcType=VARCHAR}
</delete>
<insert id="insert" parameterType="bean.AppMessage" >
insert into appuser_message (id, message, senddate
)
values (#{id,jdbcType=VARCHAR}, #{message,jdbcType=VARCHAR}, #{senddate,jdbcType=TIMESTAMP}
)
</insert>
<insert id="insertSelective" parameterType="bean.AppMessage" >
insert into appuser_message
<trim prefix="(" suffix=")" suffixOverrides="," >
<if test="id != null" >
id,
</if>
<if test="message != null" >
message,
</if>
<if test="senddate != null" >
senddate,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=VARCHAR},
</if>
<if test="message != null" >
#{message,jdbcType=VARCHAR},
</if>
<if test="senddate != null" >
#{senddate,jdbcType=TIMESTAMP},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="bean.AppMessage" >
update appuser_message
<set >
<if test="message != null" >
message = #{message,jdbcType=VARCHAR},
</if>
<if test="senddate != null" >
senddate = #{senddate,jdbcType=TIMESTAMP},
</if>
</set>
where id = #{id,jdbcType=VARCHAR}
</update>
<update id="updateByPrimaryKey" parameterType="bean.AppMessage" >
update appuser_message
set message = #{message,jdbcType=VARCHAR},
senddate = #{senddate,jdbcType=TIMESTAMP}
where id = #{id,jdbcType=VARCHAR}
</update>
<select id="selectAll" resultMap="BaseResultMap">
select
id, message, senddate
from appuser_message
order by senddate
</select>
<select id="getMessById" resultMap="BaseResultMap" parameterType="java.lang.String">
select
id, message, senddate
from
appuser_message
where id = #{id,jdbcType=VARCHAR}
order by senddate asc
</select>
</mapper>
//实体类
package bean;
import java.util.Date;
public class AppMessage {
private String id;
private String message;
private Date senddate;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id == null ? null : id.trim();
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message == null ? null : message.trim();
}
public Date getSenddate() {
return senddate;
}
public void setSenddate(Date senddate) {
this.senddate = senddate;
}
}
//启动类
package com.shuai.spring_boot_1;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
/**
* Hello world!
*
*/
@ComponentScan(basePackages="controller")
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
pom.xml
<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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<groupId>com.shuai</groupId>
<artifactId>spring-boot-1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-1</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<!--web应用基本环境配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId>
<version>1.3.5.RELEASE</version> </dependency> -->
</dependencies>
<build>
<plugins>
<!-- spring-boot-maven-plugin插件就是打包spring boot应用的 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
#properties文件
spring.datasource.url=jdbc:mysql://localhost:3306/world
spring.datasource.username=root
spring.datasource.password=000000
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
server.port=8012
server.session.timeout=10
server.tomcat.uri-encoding=UTF-8
# mybatis.config= classpath:mybatis-config.xml
mybatis.mapperLocations=classpath:mappers/*.xml
# domain object's package
#mybatis.typeAliasesPackage=com.lgp.SpringBoot.bean
mybatis.typeAliasesPackage=bean
# handler's package
# mybatis.typeHandlersPackage=
# check the mybatis configuration exists
# mybatis.check-config-location=
# mode of execution. Default is SIMPLE
# mybatis.executorType=
错误日志