如何成为Android开发高手

核心提示：080081 conn.setDoOutput(true);//允许输出082083 conn.setUseCaches(false);//不使用Cache084085 conn.setRequestMethod("POST");086087 conn.setRequestProperty(&quo

080

081 conn.setDoOutput(true);//允许输出

082

083 conn.setUseCaches(false);//不使用Cache

084

085 conn.setRequestMethod("POST");

086

087 conn.setRequestProperty("Connection", "Keep-Alive");

088

089 conn.setRequestProperty("Charset", "UTF-8");

090

091 conn.setRequestProperty("Content-Type", MULTIPART_FORM_DATA + "; boundary=" + BOUNDARY);

092

093

094

095 StringBuilder sb = new StringBuilder();

096

097 for (Map.Entry entry : params.entrySet()) {//构建表单字段内容

098

099 sb.append("--");

100

101 sb.append(BOUNDARY);

102

103 sb.append(" ");

104

105 sb.append("Content-Disposition: form-data; name=\""+ entry.getKey() + "\" ");

106

107 sb.append(entry.getValue());

108

109 sb.append(" ");

110

111 }

112

113 DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());

114

115 outStream.write(sb.toString().getBytes());//发送表单字段数据

116

117 for(FormFile file : files){//发送文件数据

118

119 StringBuilder split = new StringBuilder();

120

121 split.append("--");

122

123 split.append(BOUNDARY);

124

125 split.append(" ");

126

127 split.append("Content-Disposition: form-data;name=\""+ file.getFormname()+"\";filename=\""+ file.getFilname() + "\" ");

128

129 split.append("Content-Type: "+ file.getContentType()+" ");

130

131 outStream.write(split.toString().getBytes());

132

133 if(file.getInStream()!=null){