本文實(shí)例講述了java實(shí)現(xiàn)后臺(tái)發(fā)送及接收json數(shù)據(jù)的方法。分享給大家供大家參考，具體如下：
本篇博客試用于編寫(xiě)java后臺(tái)接口以及兩個(gè)項(xiàng)目之間的接口對(duì)接功能；
具體的內(nèi)容如下:
1.java后臺(tái)給指定接口發(fā)送json數(shù)據(jù)
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
package com.utils;import java.io.bufferedreader;import java.io.inputstreamreader;import java.io.outputstreamwriter;import java.net.httpurlconnection;import java.net.url;import net.sf.json.jsonobject;public class testone { public static void main(string[] args) { jsonobject jsobj1 = new jsonobject(); jsonobject jsobj2 = new jsonobject(); jsobj2.put("deviceid", "112"); jsobj2.put("channel", "channel"); jsobj2.put("state", "0"); jsobj1.put("item", jsobj2); jsobj1.put("requestcommand", "control"); post(jsobj1,"http://192.168.3.4:8080/hsdc/test/authentication"); } public static string post(jsonobject json,string path) { string result=""; try { httpclient client=new defaulthttpclient(); httppost post=new httppost(url); post.setheader("content-type", "appliction/json"); post.addheader("authorization", "basic ywrtaw46"); stringentity s=new stringentity(json.tostring(), "utf-8"); s.setcontentencoding(new basicheader(http.content_type, "appliction/json")); post.setentity(s); httpresponse httpresponse=client.execute(post); inputstream in=httpresponse.getentity().getcontent(); bufferedreader br=new bufferedreader(new inputstreamreader(in, "utf-8")); stringbuilder strber=new stringbuilder(); string line=null; while ((line=br.readline())!=null) { strber.append(line+"\n"); } in.close(); result=strber.tostring(); if(httpresponse.getstatusline().getstatuscode()!=httpstatus.sc_ok){ result="服務(wù)器異常"; } } catch (exception e) { system.out.println("請(qǐng)求異常"); throw new runtimeexception(e); } system.out.println("result=="+result); return result; }} |
2.java后臺(tái)接收json數(shù)據(jù)
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
package com.controller;import java.io.ioexception;import java.io.inputstreamreader;import java.io.unsupportedencodingexception;import java.util.hashmap;import java.util.map;import org.springframework.http.mediatype;import org.springframework.web.bind.annotation.requestmapping;import org.springframework.web.bind.annotation.requestmethod;import org.springframework.web.bind.annotation.restcontroller;import javax.annotation.resource;import javax.servlet.http.httpservletrequest;@restcontroller@requestmapping("test")public class testconttroller{ @resource protected httpservletrequest request; @requestmapping(value="authentication",produces = mediatype.application_json_value,method = requestmethod.post) public map<string,object> getstring() throws unsupportedencodingexception, ioexception{ system.out.println("進(jìn)入====================="); //后臺(tái)接收 inputstreamreader reader=new inputstreamreader(request.getinputstream(),"utf-8"); char [] buff=new char[1024]; int length=0; while((length=reader.read(buff))!=-1){ string x=new string(buff,0,length); system.out.println(x); } //響應(yīng) map<string,object> jsonobject = new hashmap<string, object>(); //創(chuàng)建json對(duì)象 jsonobject.put("username", "張三"); //設(shè)置json對(duì)象的屬性 jsonobject.put("password", "123456"); return jsonobject; }} |
運(yùn)行testone之后將json數(shù)據(jù)發(fā)送到authentication接口，接收的數(shù)據(jù)如圖：
testone中main方法返回的數(shù)據(jù)如圖：
至此java后臺(tái)發(fā)送及接收json數(shù)據(jù)代碼也就完成了
ps：關(guān)于json操作，這里再為大家推薦幾款比較實(shí)用的json在線工具供大家參考使用：
在線json代碼檢驗(yàn)、檢驗(yàn)、美化、格式化工具：https://tool.zzvips.com/t/jsonjiexi/
json在線格式化工具：https://tool.zzvips.com/t/jsonformat/
在線excel轉(zhuǎn)json工具：https://tool.zzvips.com/t/excel2json/
json轉(zhuǎn)excel工具：https://tool.zzvips.com/t/json2excel/
在線json壓縮/轉(zhuǎn)義工具：https://tool.zzvips.com/t/jsonzip/
希望本文所述對(duì)大家java程序設(shè)計(jì)有所幫助。
原文鏈接：https://blog.csdn.net/huxiangen/article/details/80433320
