详解Spring Boot实战之Rest接口开发及数据库基本操作

 <dependency> 
<groupid>org.springframework.boot</groupid> 
<artifactid>spring-boot-starter-data-jpa</artifactid> 
</dependency> 
<dependency> 
<groupid>mysql</groupid> 
<artifactid>mysql-connector-java</artifactid> 
</dependency> 

spring.datasource.url = jdbc:mysql://127.0.0.1:3306/springlearn 
spring.datasource.username = root 
spring.datasource.password = root 
spring.datasource.driverclassname = com.mysql.jdbc.driver 
 
 
# 配置数据库 
spring.jpa.database = mysql 
# 查询时是否显示日志 
spring.jpa.show-sql = true 
# hibernate ddl auto (create, create-drop, update) 
spring.jpa.hibernate.ddl-auto = update 
# naming strategy 
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.improvednamingstrategy 
# stripped before adding them to the entity manager) 
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.mysql5dialect 

package com.xiaofangtech.sunt.bean; 
 
import javax.persistence.entity; 
import javax.persistence.generatedvalue; 
import javax.persistence.generationtype; 
import javax.persistence.id; 
import javax.persistence.table; 
import javax.validation.constraints.notnull; 
 
@entity 
@table(name="t_user") 
public class userinfo { 
  @id 
  @generatedvalue(strategy = generationtype.auto) 
  private int id; 
  @notnull 
  private string name; 
   
  private string password; 
   
  private string salt; 
   
  private string role; 
 
  public int getid() { 
    return id; 
  } 
 
  public void setid(int id) { 
    this.id = id; 
  } 
 
  public string getname() { 
    return name; 
  } 
 
  public void setname(string name) { 
    this.name = name; 
  } 
 
  public string getpassword() { 
    return password; 
  } 
 
  public void setpassword(string password) { 
    this.password = password; 
  } 
 
  public string getsalt() { 
    return salt; 
  } 
 
  public void setsalt(string salt) { 
    this.salt = salt; 
  } 
 
  public string getrole() { 
    return role; 
  } 
 
  public void setrole(string role) { 
    this.role = role; 
  } 
} 

package com.xiaofangtech.sunt.repository; 
 
import java.util.list; 
 
import org.springframework.data.jpa.repository.query; 
import org.springframework.data.repository.crudrepository; 
 
import com.xiaofangtech.sunt.bean.userinfo; 
 
public interface userinforepository extends crudrepository<userinfo, integer>{ 
  userinfo finduserinfobyid(int id); 
  list<userinfo> finduserinfobyrole(string role); 
   
  @query(value = "select * from t_user limit ?1", nativequery =true) 
  list<userinfo> findallusersbycount(int count); 
} 

package com.xiaofangtech.sunt.controller; 
 
import java.util.list; 
 
import org.springframework.beans.factory.annotation.autowired; 
import org.springframework.data.jpa.repository.modifying; 
import org.springframework.web.bind.annotation.requestbody; 
import org.springframework.web.bind.annotation.requestmapping; 
import org.springframework.web.bind.annotation.restcontroller; 
 
import com.xiaofangtech.sunt.bean.userinfo; 
import com.xiaofangtech.sunt.repository.userinforepository; 
import com.xiaofangtech.sunt.utils.resultmsg; 
import com.xiaofangtech.sunt.utils.resultstatuscode; 
 
@restcontroller 
@requestmapping("user") 
public class usercontroller { 
  @autowired 
  private userinforepository userrepositoy; 
   
  @requestmapping("getuser") 
  public object getuser(int id) 
  { 
    userinfo userentity = userrepositoy.finduserinfobyid(id); 
    resultmsg resultmsg = new resultmsg(resultstatuscode.ok.geterrcode(), resultstatuscode.ok.geterrmsg(), userentity); 
    return resultmsg; 
  } 
   
  @requestmapping("getusers") 
  public object getusers(string role) 
  { 
    list<userinfo> userentities = userrepositoy.finduserinfobyrole(role); 
    resultmsg resultmsg = new resultmsg(resultstatuscode.ok.geterrcode(), resultstatuscode.ok.geterrmsg(), userentities); 
    return resultmsg; 
  } 
   
  @modifying 
  @requestmapping("adduser") 
  public object adduser(@requestbody userinfo userentity) 
  { 
    userrepositoy.save(userentity); 
    resultmsg resultmsg = new resultmsg(resultstatuscode.ok.geterrcode(), resultstatuscode.ok.geterrmsg(), userentity); 
    return resultmsg; 
  } 
   
  @modifying 
  @requestmapping("updateuser") 
  public object updateuser(@requestbody userinfo userentity) 
  { 
    userinfo user = userrepositoy.finduserinfobyid(userentity.getid()); 
    if (user != null) 
    { 
      user.setname(userentity.getname()); 
      userrepositoy.save(user); 
    } 
    resultmsg resultmsg = new resultmsg(resultstatuscode.ok.geterrcode(), resultstatuscode.ok.geterrmsg(), null); 
    return resultmsg; 
  } 
   
  @modifying 
  @requestmapping("deleteuser") 
  public object deleteuser(int id) 
  { 
    userrepositoy.delete(id); 
    resultmsg resultmsg = new resultmsg(resultstatuscode.ok.geterrcode(), resultstatuscode.ok.geterrmsg(), null); 
    return resultmsg; 
  } 
} 

package com.xiaofangtech.sunt.utils; 
 
public class resultmsg { 
  private int errcode; 
  private string errmsg; 
  private object p2pdata; 
   
  public resultmsg(int errcode, string errmsg, object p2pdata) 
  { 
    this.errcode = errcode; 
    this.errmsg = errmsg; 
    this.p2pdata = p2pdata; 
  } 
  public int geterrcode() { 
    return errcode; 
  } 
  public void seterrcode(int errcode) { 
    this.errcode = errcode; 
  } 
  public string geterrmsg() { 
    return errmsg; 
  } 
  public void seterrmsg(string errmsg) { 
    this.errmsg = errmsg; 
  } 
  public object getp2pdata() { 
    return p2pdata; 
  } 
  public void setp2pdata(object p2pdata) { 
    this.p2pdata = p2pdata; 
  } 
} 

package com.xiaofangtech.sunt.utils; 
 
public enum resultstatuscode { 
  ok(0, "ok"), 
  system_err(30001, "system error"); 
   
  private int errcode; 
  private string errmsg; 
  public int geterrcode() { 
    return errcode; 
  } 
 
  public void seterrcode(int errcode) { 
    this.errcode = errcode; 
  } 
 
  public string geterrmsg() { 
    return errmsg; 
  } 
 
  public void seterrmsg(string errmsg) { 
    this.errmsg = errmsg; 
  } 
  private resultstatuscode(int errode, string errmsg) 
  { 
    this.errcode = errode; 
    this.errmsg = errmsg; 
  } 
} 

hibernate: insert into t_user (name, password, role, salt) values (?, ?, ?, ?)


hibernate: select userinfo0_.id as id1_0_, userinfo0_.name as name2_0_, userinfo0_.password as password3_0_, userinfo0_.role as role4_0_, userinfo0_.salt as salt5_0_ from t_user userinfo0_ where userinfo0_.id=?
hibernate: update t_user set name=?, password=?, role=?, salt=? where id=?


hibernate: select userinfo0_.id as id1_0_, userinfo0_.name as name2_0_, userinfo0_.password as password3_0_, userinfo0_.role as role4_0_, userinfo0_.salt as salt5_0_ from t_user userinfo0_ where userinfo0_.id=?


hibernate: select userinfo0_.id as id1_0_, userinfo0_.name as name2_0_, userinfo0_.password as password3_0_, userinfo0_.role as role4_0_, userinfo0_.salt as salt5_0_ from t_user userinfo0_ where userinfo0_.role=?


hibernate: select userinfo0_.id as id1_0_0_, userinfo0_.name as name2_0_0_, userinfo0_.password as password3_0_0_, userinfo0_.role as role4_0_0_, userinfo0_.salt as salt5_0_0_ from t_user userinfo0_ where userinfo0_.id=?
hibernate: delete from t_user where id=?

userinfo finduserinfobyid(int id);

list<userinfo> finduserinfobyrole(string role);

@query(value = "select * from t_user limit ?1", nativequery =true)
list<userinfo> findallusersbycount(int count);