학원 31일차 복습(4/25)

이론

REST의 기본 개념

REST - 평범한 HTTP URL 을 통해 호출

REST - 리소스 지향적이고 애플리케이션을 표현하는 객체와 명사를 강조

표현(Representational) - REST 리소스는 XML, JSON(JavaScript Object Notation), HTML 등 사실상 거의 모든 형식으로 표현

상태(State) - 리소스에 대해 액션보다 상태에 더 많은 관심

전달(Transfer) - REST는 한 애플리케이션에서 다른 애플리케이션으로 어떤 표현 형식으로 리소스 데이터 전달을 포함한다.

URL에서 리소스 구별, 서버에 명령어를 보내지 않음

스프링이 REST를 지원하는 방법

이전부터 가능. 스프링 3부터 개선. 4.0 기준 설명

컨트롤러 REST 네 가지 주요 메소드 - GET, PUT, DELETE, POST. PATCH 는 스프링 3.2 이상

@PathVariable 파라미터화된 URL(경로의 일부분에 변수 입력이 있는 URL)에 대한 요청을 처리.

@RequestMapping("/dog/{name}")public String dog(@PathVariable String name) {

XML, JSON, Atom, RSS 등 다양한 방식으로 표현. 스프링의 뷰와 뷰 리졸버를 이용

클라이언트에 대한 가장 적합한 표현은 새로운 ContentNegotiatingViewRsolver를 이용해 선택

@ReponseBody 애너테이션, 다양한 HttpMessageConverter 로 뷰 기반 렌더링 무시

마찬가지로 새로운 @RequestBody 애너테이션은 HttpMethodConverter 구현체와 함께 인바운드 HTTP 데이터를 컨트롤러의 핸들러 메소드에 전달하는 자바 객체로 변환

RestTemplate은 클라이언트 측의 REST 리소스 사용을 간소화

RESTful 컨트롤러 생성

@Controllerpublic class DemoController {  @ResponseBody  @RequestMapping(value="/hello2", method= RequestMethod.GET)  public HashMap<String, Object> test2() {      HashMap<String, Object> map = new HashMap<>();      map.put("abc", "ddd");      return map;  }

@RestController 이용하기. @RestController 는 @Controller 와 @ResponseBody 포함. 스프링 4.0

@RestControllerpublic class DemoController {  @RequestMapping(value="/hello3", method= RequestMethod.GET)  public HashMap<String, Object> test3() {      HashMap<String, Object> map = new HashMap<>();      map.put("abcaa", "ddeeed");      return map;  }

최소한 json을 지원하기를 추천

실제로 Spring Boot 환경에서 별다른 설정 안하면 json 이 기본

스프링은 리소스의 자바 표현을 클라이언트에 전달될 표현으로 변환하는 두 가지 방법을 제공

콘텐츠 협상 (Content Negotiation) - 모델이 클라이언트에 제공되는 표현으로 렌더링될 수 있도록 뷰는 선택된다

메시지 변환 (Message Converter) - 메시지 변환기는 컨트롤러에서 반환된 객체를 클라이언트에 제공되는 표현으로 변경

래스트풀 쓰는이유: 바로 데이터를 바인딩하기 위해

실습

스프링소스

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> <groupId>androidWebService0424_25</groupId> <artifactId>androidWebService0424_25</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <build> <sourceDirectory>src</sourceDirectory> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.0.0</version> <configuration> <warSourceDirectory>WebContent</warSourceDirectory> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.6.RELEASE</version> </dependency> <!-- spring-jdbc for MyBatis --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.6.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- Web MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.6.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.6.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.3</version> </dependency> <!-- Aop관련 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.10</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.6</version> </dependency> </dependencies> </project>

kosta-servlet.xml

<?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" xmlns:p="http://www.springframework.org/schema/p" 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"> <context:component-scan base-package="or.kosta.mvc"/> <mvc:annotation-driven/> <mvc:resources location="/resources/" mapping="/resources/**"/> <!-- dataSource setting --> <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="java:comp/env/jdbc/myoracle"></property> </bean> <!-- MyBatis config,mapper setting --> <bean id="factoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:or/kosta/config/config.xml"/> <property name="mapperLocations" value="classpath*:or/kosta/mapper/*.xml"/> </bean> <!-- MyBatis Template configure --> <bean id="ss" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg ref="factoryBean"/> </bean> <!-- Mybatis MapperFactoryBean --> <bean class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="or.kosta.mvc.map.MemoMapper"/> <property name="sqlSessionFactory" ref="factoryBean"/> </bean> <!-- multipartResolver 추가 : 파일 업로드를 하기 위해서 꼭 필요한 객체 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"></bean> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans>

or.kosta.config/config.xml

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <typeAlias type="or.kosta.vo.MemoVO" alias="mvo" /> </typeAliases> </configuration>

or.kosta.mapper/map.xml

<?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="memo"> <select id="list" resultType="mvo"> select num, writer, pwd, mcontent, reip, mdate from memo </select> </mapper>

or.kosta.mvc.controller/DefaultController.java

package or.kosta.mvc.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class DefaultController { //기본 페이지 설정 @RequestMapping(value= {"/index","/"}) public String defaultPage() { return "index"; } @RequestMapping(value="/myindex") public String myDefaultView() { return "index"; } }

or.kosta.mvc.controller/MemoRestController.java

package or.kosta.mvc.controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import or.kosta.mvc.map.MemoMapper; import or.kosta.vo.MemoVO; @RestController @RequestMapping("/memos") public class MemoRestController { @Autowired private MemoMapper memoMapper; @RequestMapping("/memoList") public List<MemoVO> respList(){ List<MemoVO> list = memoMapper.getMemoList(); return list; } }

or.kosta.mvc.controller/MessageController.java

package or.kosta.mvc.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class MessageController { @RequestMapping(value="/add") public String addMessage(String msg ,Model m) { msg="^--^"+msg; m.addAttribute("msg",msg); System.out.println("Message: "+msg); return "result"; } }

or.kosta.mvc.controller/SpringRestController.java

package or.kosta.mvc.controller; import java.util.ArrayList; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import or.kosta.mvc.dao.MvoDao; import or.kosta.vo.MemberVO; import or.kosta.vo.MemoVO; @RestController @RequestMapping("/members") public class SpringRestController { @Autowired private MvoDao mvoDao; //문자열을 반환하는 경우 @RequestMapping("/hello") public String sayHello() { return "Hello Rest Ful"; } //객체를 JSON으로 반환 하는 경우 //웹에서 요청시에 jackson-databind 라이브러리가 있어야함 @RequestMapping("/respVO") public MemberVO respVO() { MemberVO v = new MemberVO(); v.setId("xman"); v.setName("김길동"); v.setNum(8); v.setAddress("인천"); v.setPassword("test00"); return v; } //컬랙션타입의 객체를 반환하여 JSON-ARRAY로 반환하는 경우 @RequestMapping("/respList") public List<MemberVO> respList(){ //public ResponseEntitiy<List<MemberVO>> respListNot(){ List<MemberVO> list = new ArrayList<>(); for(int i=0; i<=12; i++) { MemberVO v = new MemberVO(); v.setId("xman"+i); v.setName("김길동"+i); v.setNum(i); v.setAddress("인천"+i); v.setPassword("test0"+i); list.add(v); } return list; } @RequestMapping(value = "/memoList") public List<MemoVO> memoList() { List<MemoVO> list = mvoDao.getList(); return list; } }

or.kosta.mvc.dao/MvoDao.java

package or.kosta.mvc.dao; import java.util.List; import org.mybatis.spring.SqlSessionTemplate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import or.kosta.vo.MemoVO; @Repository public class MvoDao { @Autowired private SqlSessionTemplate ss; public List<MemoVO> getList(){ return ss.selectList("memo.list"); } }

or.kosta.mvc.map/MemoMapper.java

package or.kosta.mvc.map; import java.util.List; import org.apache.ibatis.annotations.Mapper; import org.apache.ibatis.annotations.Select; import or.kosta.vo.MemoVO; @Mapper public interface MemoMapper { @Select("Select num,writer,mcontent,reip,img,to_char(mdate,'yyyy-mm-dd')"+ " mdate from memo order by 1 desc") public List<MemoVO> getMemoList(); }

or.kosta.vo/MemberVO.java

package or.kosta.vo; public class MemberVO { private int num; private String id,password,name,img,tel,address,mdate; public String getMdate() { return mdate; } public void setMdate(String mdate) { this.mdate = mdate; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getImg() { return img; } public void setImg(String img) { this.img = img; } public String getTel() { return tel; } public void setTel(String tel) { this.tel = tel; } }

or.kosta.vo/MemoVO.java

package or.kosta.vo; public class MemoVO { private int num; private String writer,pwd,mcontent,reip,img,mdate; public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getWriter() { return writer; } public void setWriter(String writer) { this.writer = writer; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } public String getMcontent() { return mcontent; } public void setMcontent(String mcontent) { this.mcontent = mcontent; } public String getReip() { return reip; } public void setReip(String reip) { this.reip = reip; } public String getImg() { return img; } public void setImg(String img) { this.img = img; } public String getMdate() { return mdate; } public void setMdate(String mdate) { this.mdate = mdate; } }

result.jsp

<%@ page language="java" contentType="text/html; charset=EUC-KR" pageEncoding="EUC-KR"%> <%@page trimDirectiveWhitespaces="true" %> ${msg}

안드로이드소스

ex1_http.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <EditText android:id="@+id/editText" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textPersonName" android:ems="10" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Button" android:id="@+id/button6" android:onClick="sendClick2" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" android:id="@+id/textView" /> </LinearLayout>

ex1_listview.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <ListView android:id="@+id/ex1_list" android:layout_width="match_parent" android:layout_height="wrap_content"/> </LinearLayout>

exam2_column.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/exam_ly" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" > <ImageView android:id="@+id/examImage" android:layout_width="63dp" android:layout_height="56dp" app:srcCompat="@drawable/disk" /> <TableLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TableRow android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/colMemberID" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /> </TableRow> <TableRow android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/colName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /> </TableRow> <TableRow android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/colContent" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /> </TableRow> </TableLayout> </LinearLayout>

Ex1_Http.java

package kr.or.kosta.myand0425; import android.os.Build; import android.os.Bundle; import android.os.StrictMode; import android.support.annotation.Nullable; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import org.json.JSONArray; import org.json.JSONObject; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.ArrayList; import java.util.HashMap; public class Ex1_Http extends AppCompatActivity { private EditText editText; static private TextView textView; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.ex1_http); editText = findViewById(R.id.editText); textView = findViewById(R.id.textView); if(Build.VERSION.SDK_INT>9){ StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); } } public void sendClick2(View v){ String msg = editText.getText().toString(); Toast.makeText(getApplicationContext(), msg,Toast.LENGTH_LONG).show(); setGcmKey(msg); } public void setGcmKey(String msg) { URL url = null; try { //URL클래스를 사용해서 Query를 작성 url = new URL("http://192.168.0.118/androidWebService0424_25/memos/memoList"); //HttpURLConnection을 URL로부터 생성 HttpURLConnection httpClient = (HttpURLConnection) url.openConnection(); StringBuffer datav = new StringBuffer(); //JSonArray를 받기 위한 ArrayList추가 ArrayList<HashMap<String,String>> lists = new ArrayList<>(); if (httpClient != null) { // TTL 설정 httpClient.setConnectTimeout(10000); // 전송방식 httpClient.setRequestMethod("GET"); // input/output을 설정 httpClient.setDoInput(true); httpClient.setDoOutput(true); int res = httpClient.getResponseCode(); // 서버 응답이 완료 if (res == HttpURLConnection.HTTP_OK) { // 서버와 스트림을 연결 BufferedReader in = new BufferedReader( new InputStreamReader(httpClient.getInputStream())); String str = null; while ((str = in.readLine()) != null) { datav.append(str).append("\n"); } //Json양식의 데이터를 인자로 넣어서 JSONArray를 생성 //[{},{},{}] //{"num":1,"writer":"김길동","pwd":null,"mcontent":"안녕하세요^^", // "reip":"192.168.0.119","img":"m1.png","mdate":"2018-04-25"} JSONArray data = new JSONArray(datav.toString()); for(int i=0; i < data.length(); i++){ JSONObject c = data.getJSONObject(i); HashMap<String,String> maps = new HashMap<>(); maps.put("num", c.getString("num")); maps.put("writer",c.getString("writer")); maps.put("mcontent",c.getString("mcontent")); maps.put("reip",c.getString("reip")); maps.put("img",c.getString("img")); maps.put("mdate",c.getString("mdate")); lists.add(maps); } System.out.println("***************************"); System.out.println( "datav: " + datav.toString()); // 하나의 데이터를 접근해서 출력 테스트 textView.setText(lists.get(0).get("writer")); in.close(); httpClient.disconnect(); } } }catch (Exception e) { e.printStackTrace(); } } }

Exam_UrlListView.java

package kr.or.kosta.myand0425; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.os.Handler; import android.os.StrictMode; import android.support.annotation.Nullable; import android.support.v7.app.AppCompatActivity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import org.json.JSONArray; import org.json.JSONObject; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.ByteArrayOutputStream; import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.ArrayList; import java.util.HashMap; public class Exam_UrlListView extends AppCompatActivity { private ListView listView; private ArrayList<HashMap<String,Object>> lists; //Json저장 private Handler handler = new Handler(); //URL요청 담당 @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.ex1_listview); listView = findViewById(R.id.ex1_list); if(android.os.Build.VERSION.SDK_INT > 9){ StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy);} new Thread(new Runnable() { @Override public void run() { handler.post(new Runnable() { @Override public void run() { setGcmKey("hi"); } }); } }).start(); } class ImageAdpater extends BaseAdapter{ // url로 받아온 이미지를 Bitmap으로 변환하기 위한 기능 //갖춘 Adapter private Context mContext; public ImageAdpater(Context mContext) { this.mContext = mContext; } @Override public int getCount() { return lists.size(); } @Override public Object getItem(int position) { return lists.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); if(convertView == null){ convertView = inflater.inflate(R.layout.exam2_column,null); } ImageView imageView = convertView.findViewById(R.id.examImage); imageView.getLayoutParams().height=100; imageView.getLayoutParams().width=100; imageView.setPadding(2,2,2,2); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setImageBitmap((Bitmap) lists.get(position).get("imgBitmap")); TextView colMemberID = convertView.findViewById(R.id.colMemberID); TextView colName = convertView.findViewById(R.id.colName); TextView colContent = convertView.findViewById(R.id.colContent); colMemberID.setText("Num:"+lists.get(position).get("num")); colName.setText("Writer:"+lists.get(position).get("writer")); colContent.setText("Content:"+lists.get(position).get("mcontent")); return convertView; } }// 이미지를 읽어 들여오는 스트림! private static void copy(InputStream in, OutputStream out) throws IOException { byte[] b= new byte[1024]; int read = -1; while ((read = in.read(b)) != -1){ out.write(b,0,read); } } private static void closeStream(Closeable stream){ if(stream != null){ try {stream.close(); } catch (IOException e) { e.printStackTrace();} } }//http://hostIP/androidWebService0424_25/resources/image/m1.png public static Bitmap loadImage(String url){ Bitmap bitmap = null; InputStream in = null; BufferedOutputStream out=null; try { in = new BufferedInputStream(new URL(url).openStream(),1024); ByteArrayOutputStream dataStream = new ByteArrayOutputStream(); out = new BufferedOutputStream(dataStream,1024); copy(in,out); out.flush(); byte[] data = dataStream.toByteArray(); BitmapFactory.Options options = new BitmapFactory.Options(); //BitMap 이미지를 사용하기 위해서 BitmapFactory로 해당 객체를 생성 bitmap = BitmapFactory.decodeByteArray(data,0,data.length,options); } catch (IOException e) { e.printStackTrace(); }finally { closeStream(in); closeStream(out); } return bitmap; } public void setGcmKey(String msg) { URL url = null; try { url = new URL("http://192.168.0.118/androidWebService0424_25/memos/memoList"); HttpURLConnection httpClient = (HttpURLConnection) url.openConnection(); StringBuffer datav = new StringBuffer(); lists = new ArrayList<>(); if (httpClient != null) { httpClient.setConnectTimeout(10000); httpClient.setRequestMethod("GET"); httpClient.setDoInput(true); httpClient.setDoOutput(true); int res = httpClient.getResponseCode(); if (res == HttpURLConnection.HTTP_OK) { BufferedReader in = new BufferedReader( new InputStreamReader(httpClient.getInputStream())); String str = null; while ((str = in.readLine()) != null) { datav.append(str).append("\n"); } JSONArray data = new JSONArray(datav.toString()); String imgurl ="http://192.168.0.118/androidWebService0424_25/resources/img"; for(int i=0; i < data.length(); i++){ JSONObject c = data.getJSONObject(i); HashMap<String,Object> maps = new HashMap<>(); maps.put("num", c.getString("num")); maps.put("writer",c.getString("writer")); maps.put("mcontent",c.getString("mcontent")); maps.put("reip",c.getString("reip")); maps.put("img",c.getString("img")); Bitmap newBitmap = loadImage(imgurl+"/"+c.getString("img")); maps.put("imgBitmap",newBitmap); maps.put("mdate",c.getString("mdate")); lists.add(maps); } System.out.println("***************************"); System.out.println( "datav: " + datav.toString()); listView.setAdapter(new ImageAdpater(this)); // 하나의 데이터를 접근해서 출력 테스트 //textView.setText(lists.get(0).get("writer")); closeStream(in); httpClient.disconnect(); } } }catch (Exception e) { e.printStackTrace(); } } }