Java web 项目发送请求到 thinkphp 项目返回Json字符串
一 java web 项目发送一个httpget请求
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;String url = "http://192.168.8.111:83/Home/Dock/getJson?auth=5d40f1dba14d7bf67d9ddcf8c4b634d6&website=slug";
HttpClient httpCient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);二 thinkphp 项目接收请求，并根据发送的字符串处理对应数据 ，返回一个json字符串，到页面
php路径 ： Home->DockController.class.php->getJson 方法中
namespace Home\Controller;
use Home\Controller\CommonController;
class DockController extends CommonController {public function getJson($slug=''){if( isset($_GET['auth']) && $_GET['auth'] == md5('java_to_php') ){$slug=$_GET['website'];//下面是根据slug 条件 查询 数据库 的代码，我查询到的数据放在 $normallist 中echo json_encode($normallist);//把要传输的数据转成json串，打印到页面}exit;}
}附：我在页面打印的信息
页面url：http://192.168.8.111:83/Home/Dock/getJson?auth=5d40f1dba14d7bf67d9ddcf8c4b634d6&website=slug
页面信息：
{"3568": {"website": "justtest.com","brand": "justtest.com","brand_url": "codes/justtest.com","redirect_url": "http://www.justtest.com","title": "justtest.com Promotion on Selected Porducts!","description": "It's just a test description","code": "","discount": "","freeshipping": "0","expiration_time": "05/26/2016","window_url": null},"6553": {"website": "justtest.com","brand": "justtest.com","brand_url": "codes/justtest.com","redirect_url": "http://www.justtest.com/2016/08/20/just-a-test-url/","title": "I don't know what should I say with justtest.com","description": "It's just a test description","code": "","discount": "20%","freeshipping": "0","expiration_time": "10/28/2016","window_url": "./haha/1036923"}
}三 java web 项目接收json串 并转换成 List
List注： object是根据json串的 key 自定义的一个类
四 再次贴出java web 全部代码
package com.form.comm.util.importData;import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import com.form.domain.Object;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;public class TestString {public static void main(String[] args) {List附录：下面是本次需求在网上找的文档(以下部分,代码非原创)
1.java web 发送请求的相关内容
/* 注意get和post请求的发送区别 * 1、创建HttpGet(或HttpPost)对象，将要请求的URL通过构造方法传入HttpGet(或HttpPost)对象中； 2、使用DefaultHttpClient类的execute方法发送HTTP GET或HTTP POST 请求，并返回HttpResponse对象； 3、通过HttpResponse接口的getEntity方法返回响应信息。 * */ public class TestHttpActivity extends Activity { private Button btn_get; private Button btn_post; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); btn_get=(Button)findViewById(R.id.btn_get); btn_post=(Button)findViewById(R.id.btn_post); btn_get.setOnClickListener(listener); btn_post.setOnClickListener(listener); } private OnClickListener listener=new OnClickListener() { @Override public void onClick(View v) { switch (v.getId()) { case R.id.btn_post: Log.i("TestHttpActivity", "ok"); DefaultHttpClient client = new DefaultHttpClient(); /**NameValuePair是传送给服务器的请求参数 param.get("name") **/ List list = new ArrayList(); NameValuePair pair1 = new BasicNameValuePair("name", "name0001"); NameValuePair pair2 = new BasicNameValuePair("age", "age0001"); list.add(pair1); list.add(pair2); UrlEncodedFormEntity entity=null; try { /**设置编码 **/ entity = new UrlEncodedFormEntity(list,"UTF-8"); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } /**新建一个post请求**/ HttpPost post = new HttpPost("http://aaron-pc.wsd.com/Test/testHttp"); post.setEntity(entity); HttpResponse response=null; String strResult=""; try { /**客服端向服务器发送请求**/ response = client.execute(post); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } /**请求发送成功，并得到响应**/ if(response.getStatusLine().getStatusCode()==200){ try { /**读取服务器返回过来的json字符串数据**/ strResult = EntityUtils.toString(response.getEntity()); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } JSONObject jsonObject = null; try { /**把json字符串转换成json对象**/ jsonObject = getJSON(strResult); } catch (JSONException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } String names=""; try { /** * jsonObject.getString("code") 取出code * 比如这里返回的json 字符串为 [code:0,msg:"ok",data:[list:{"name":1},{"name":2}]] * **/ /**得到data这个key**/ String data=jsonObject.getString("data"); /**把data下的数据转换成json对象**/ JSONObject jDat = new JSONObject(data); /**判断data对象下的list是否存在**/ if(jDat.get("list")!=null){ /**把list转换成jsonArray对象**/ JSONArray jarr = jDat.getJSONArray("list"); /**循环list对象**/ for (int i = 0; i < jarr.length(); i++) { /** **/ JSONObject jsono = (JSONObject) jarr.get(i); /**取出list下的name的值 **/ names=names+jsono.getString("name"); } } Toast.makeText(TestHttpActivity.this, "code:"+jsonObject.getString("code")+"name:"+names, Toast.LENGTH_SHORT).show(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else Toast.makeText(TestHttpActivity.this, "POST提交失败", Toast.LENGTH_SHORT).show(); break; case R.id.btn_get: DefaultHttpClient client1 = new DefaultHttpClient(); /**NameValuePair是传送给服务器的请求参数 param.get("name") **/ UrlEncodedFormEntity entity1=null; /**新建一个get请求**/ HttpGet get = new HttpGet("http://aaron-pc.wsd.com/Test/testHttp"); HttpResponse response1=null; String strResult1=""; try { /**客服端向服务器发送请求**/ response1 = client1.execute(get); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } /**请求发送成功，并得到响应**/ if(response1.getStatusLine().getStatusCode()==200){ try { /**读取服务器返回过来的json字符串数据**/ strResult1 = EntityUtils.toString(response1.getEntity()); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } JSONObject jsonObject1 = null; try { /**把json字符串转换成json对象**/ jsonObject1 = getJSON(strResult1); } catch (JSONException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } String names=""; try { /** * jsonObject.getString("code") 取出code * 比如这里返回的json 字符串为 [code:0,msg:"ok",data:[list:{"name":1},{"name":2}]] * **/ /**得到data这个key**/ String data=jsonObject1.getString("data"); /**把data下的数据转换成json对象**/ JSONObject jDat1 = new JSONObject(data); /**判断data对象下的list是否存在**/ if(jDat1.get("list")!=null){ /**把list转换成jsonArray对象**/ JSONArray jarr1 = jDat1.getJSONArray("list"); /**循环list对象**/ for (int i = 0; i < jarr1.length(); i++) { /** **/ JSONObject jsono = (JSONObject) jarr1.get(i); /**取出list下的name的值 **/ names=names+jsono.getString("name"); } } Toast.makeText(TestHttpActivity.this, "get请求： code:"+jsonObject1.getString("code")+"name:"+names, Toast.LENGTH_SHORT).show(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else Toast.makeText(TestHttpActivity.this, "get提交失败", Toast.LENGTH_SHORT).show(); break; } } }; public JSONObject getJSON(String sb) throws JSONException { return new JSONObject(sb); } } 2.java web 接收json串 并转化的内容
package myTest;import java.util.List;import com.google.gson.Gson;public class MyTest {public static void main(String... args) throws Exception {String json = "{"+ "'title': 'Computing and Information systems',"+ "'id' : 1,"+ "'children' : 'true',"+ "'groups' : [{"+ "'title' : 'Level one CIS',"+ "'id' : 2,"+ "'children' : 'true',"+ "'groups' : [{"+ "'title' : 'Intro To Computing and Internet',"+ "'id' : 3,"+ "'children': 'false',"+ "'groups':[]"+ "}]" + "}]"+ "}";// Now do the magic.Data data = new Gson().fromJson(json, Data.class);// Show it.System.out.println(data);}}class Data {private String title;private Long id;private Boolean children;private List groups;public String getTitle() { return title; }public Long getId() { return id; }public Boolean getChildren() { return children; }public List getGroups() { return groups; }public void setTitle(String title) { this.title = title; }public void setId(Long id) { this.id = id; }public void setChildren(Boolean children) { this.children = children; }public void setGroups(List groups) { this.groups = groups; }public String toString() {return String.format("title:%s,id:%d,children:%s,groups:%s", title, id, children, groups);}
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